Pentax K-3 Mark III Review | 108 Data compared

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  • Avg. price in UK: ~£1,760
  • Avg. price in US: ~$1,800
  • Sensor size: APS-C
  • Lens mount: Pentax KAF2
  • Main camera pixel size: 3.76 µm
  • Weight: 820 g
  • Battery life (CIPA): 800 shots

Pentax K-3 Mark III review. Compare 108 technical specifications and user reviews to see how it ranks among cameras and if it is worth buying.

7.9

Overall score

What it is: An overall evaluation of the camera's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best cameras on the market.

Score components:

90.0%

7.9

Technical Score

10.0%

?

User score

Very good
7.9

Technical Score

What it is: An assessment of the camera's technical performance, covering eight key areas: image quality, autofocus, video features, stabilization, lens compatibility, connectivity, battery, and design.

When it matters: When you want to compare cameras based on technical performance and available features.

Score components:

28.0%

8.3

Sensor & Image

25.0%

8.0

Photo Features

18.0%

7.5

Video & Audio

14.0%

6.1

Display & Design

8.0%

10

Battery & Power

7.0%

8.7

Connectivity & Storage

Very good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 8.2
    Professional photography

    Score components:

    25.0%

    8.8

    Sensor size

    20.0%

    7.8

    Main camera megapixels

    20.0%

    10

    Dual card slots

    15.0%

    2.7

    N. of focus points

    10.0%

    10

    RAW photo capture

    10.0%

    10

    Phase-detection autofocus (photos)

  • 6.1
    Travel

    Score components:

    35.0%

    2.7

    Weight

    30.0%

    10

    Battery life (CIPA)

    20.0%

    10

    Sensor-shift stabilization

    15.0%

    1.0

    GPS

  • 5.9
    Beginners

    Score components:

    30.0%

    1.2

    Price

    20.0%

    2.7

    Weight

    20.0%

    10

    AF tracking

    20.0%

    10

    Battery life (CIPA)

    10.0%

    10

    Touchscreen

  • 8.4
    Landscape photography

    Score components:

    30.0%

    7.8

    Main camera megapixels

    25.0%

    8.8

    Sensor size

    20.0%

    6.9

    Main camera pixel size

    15.0%

    10

    Sensor-shift stabilization

    10.0%

    10

    RAW photo capture

  • 6.1
    Street photography

    Score components:

    30.0%

    2.7

    Weight

    25.0%

    4.7

    Thickness

    20.0%

    8.1

    AF low-light sensitivity

    15.0%

    10

    Sensor-shift stabilization

    10.0%

    10

    Eye detection AF (human)

  • 8.5
    Portraits

    Score components:

    30.0%

    8.8

    Sensor size

    25.0%

    6.9

    Main camera pixel size

    20.0%

    10

    Eye detection AF (human)

    15.0%

    7.8

    Main camera megapixels

    10.0%

    10

    Sensor-shift stabilization

  • 6.2
    Hiking

    Score components:

    30.0%

    2.7

    Weight

    25.0%

    10

    Battery life (CIPA)

    20.0%

    6.4

    Min operating temperature

    15.0%

    10

    Sensor-shift stabilization

    10.0%

    1.0

    GPS

  • No image
No image

Best prices in UK

    N/A~ £1,760

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Pentax K-3 Mark III is a flagship APS-C DSLR featuring a 25.7MP BSI-CMOS sensor and a high-performance optical viewfinder with 1.05x magnification and 100% field of view. Its primary characteristics include a rugged, weather-sealed magnesium alloy body, a 101-point SAFOX 13 autofocus system, and an improved 5-axis in-body Shake Reduction mechanism providing up to 5.5 stops of compensation. Key pros include exceptional high-ISO performance reaching 1,600,000, rapid burst shooting at up to 12 fps, and refined ergonomics with a dedicated AF joystick and 3.2-inch touchscreen. However, notable cons include a fixed rear LCD that lacks articulation, a significant 1.33x crop when recording 4K/30p video, and a relatively shallow image buffer that can limit sustained action shooting.

Technical Specifications of Pentax K-3 Mark III

Technical Score

What it is: An assessment of the camera's technical performance, covering eight key areas: image quality, autofocus, video features, stabilization, lens compatibility, connectivity, battery, and design.

When it matters: When you want to compare cameras based on technical performance and available features.

Score components:

28.0%

?

Sensor & Image

25.0%

?

Photo Features

18.0%

?

Video & Audio

14.0%

?

Display & Design

8.0%

?

Battery & Power

7.0%

?

Connectivity & Storage

7.9
Pentax K-3 Mark III has a technical score of 7.93 points, which is higher than 91.8% of cameras.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the camera.
When it matters: When you want to see which cameras attract the most buyer attention and review activity.
1.0
Pentax K-3 Mark III has a popularity of 1 points, which is higher than 0% of products in this category.
Ratio quality/price

What it is: An indicator that combines the camera's overall rating with its cost.

When it matters: When you want to know how much overall quality you get for the price.

Score components:

60.0%

7.9

Overall score

40.0%

1.2

Price

5.9
Pentax K-3 Mark III has a quality-to-price ratio of 5.9 points, which is lower than 71.2% of products in this category.
Sensor size
What it is: The sensor format value describes the physical light-collecting area.
When it matters: When you shoot in more difficult lighting.

Importance: HIGH

Good value: Full frame or larger

APS-C
Pentax K-3 Mark III uses a sensor classified as APS-C; it is larger than the sensor in 57.4% of cameras and the same size as the sensor in 25.7% of cameras.
Main camera megapixels
What it is: The effective resolution of the camera sensor, measured in megapixels (MP). Higher megapixels can capture more detail.
When it matters: When you want high-resolution photos that allow more cropping or larger prints.

Importance: HIGH

Good value: At least 20 MP

25.73 MP
Pentax K-3 Mark III has a main camera resolution of 25.73 MP, which is higher than that of 89.1% of cameras.
Main camera pixel size
What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
When it matters: When you shoot in low light and want reduced noise in your photos.

Importance: HIGH

Good value: At least 3.5 µm

3.76 µm
Pentax K-3 Mark III has a main camera pixel size of 3.76 µm which is larger than in 55.4% of cameras and equal to the size in 5.3% of cameras.
Base ISO
What it is: The native ISO setting that delivers the sensor’s standard balance of image quality and dynamic range.
When it matters: When you want the best native image quality and compare cameras at their most optimal sensitivity setting.

Importance: LOW

100
Pentax K-3 Mark III has a base ISO of 100 which is higher than that of 20.3% of cameras and equal to that of 52% of cameras.
Max ISO
What it is: The ISO ceiling shows the highest sensor sensitivity available for darker scenes.
When it matters: When you shoot in more difficult lighting.

Importance: MEDIUM

Good value: At least ISO 25,600

1,600,000
Pentax K-3 Mark III reaches a maximum sensitivity of ISO 1,600,000, which is higher than that of 100% of cameras.
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Lens mount
What it is: The mechanical and electronic interface that determines which interchangeable lenses the camera can use.
When it matters: When lens availability, upgrade options, and long-term system compatibility are central to your buying decision.

Importance: LOW

Pentax KAF2
Built-in focus motor
What it is: Indicates whether the camera body includes an internal autofocus motor for driving compatible lenses.
When it matters: When you plan to use older or budget lenses that depend on the camera body for autofocus drive.

Importance: LOW

yes
Pentax K-3 Mark III has a built-in focus motor. 10.9% of cameras have a built-in focus motor.
N. of focus points
What it is: The total number of selectable autofocus points available for positioning and tracking focus.
When it matters: When you want more flexibility in placing focus precisely or tracking subjects across the frame.

Importance: HIGH

Good value: At least 200 points

41
Pentax K-3 Mark III has 41 focus points, more than the number offered by 59.6% of cameras.
Phase-detection autofocus (photos)
What it is: Autofocus technology that measures phase differences to lock focus quickly and accurately for still photography.
When it matters: When you want faster and more reliable autofocus for still photos, especially with moving subjects.

Importance: HIGH

yes
Pentax K-3 Mark III supports phase-detection autofocus for photos. 37.3% of cameras support phase-detection autofocus for photos.
AF tracking
What it is: An autofocus mode that continuously follows a moving subject to keep it sharp during shooting.
When it matters: When your subjects move unpredictably and you need the camera to keep focus on them automatically.

Importance: MEDIUM

yes
Pentax K-3 Mark III supports AF tracking. This feature is available on 88% of cameras.
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Max video resolution
What it is: The highest video resolution the camera can record, defining the maximum level of captured image detail.
When it matters: When you care about recording the highest level of detail for cropping, editing, or future-proof video work.

Importance: HIGH

Good value: At least 3840 px

3,840 px
Pentax K-3 Mark III supports 3,840 px video recording which is higher quality than that of 76% of cameras and equal to that of 19.2% of cameras.
Video bitrate
What it is: The amount of video data recorded per second, which affects file size and potential recording quality.
When it matters: When you compare potential video quality and want fewer compression artifacts in demanding scenes.

Importance: MEDIUM

Good value: At least 200 Mbps

100 Mbps
Pentax K-3 Mark III has a video bitrate of 100 Mbps which is higher than that of 73% of cameras and equal to that of 8.7% of cameras.
Video bit depth
What it is: The number of bits used per color channel in recorded video, affecting gradation smoothness and editing flexibility.
When it matters: When you color grade video and want smoother gradients with fewer banding issues.

Importance: MEDIUM

Good value: At least 10-bit

8 bit
Pentax K-3 Mark III supports video at 8 bit, a bit depth higher than that of 7.8% of cameras and equal to that of 80.6% of cameras.
Video chroma subsampling
What it is: The color sampling format used in video recording, indicating how much color detail is retained relative to brightness detail.
When it matters: When color grading, keying, or serious post-production work is important in your video workflow.

Importance: LOW

4:2:0
Pentax K-3 Mark III supports 4:2:0 video chroma subsampling which is more advanced than that of 7.8% of cameras and equal to that of 69.9% of cameras.
Video codecs
What it is: The video compression formats the camera can use when recording, affecting compatibility, efficiency, and workflow.
When it matters: When compatibility, editing performance, and file efficiency matter in the way you handle video.

Importance: LOW

H.264
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Type
What it is: The camera type identifies the overall design, such as mirrorless, DSLR, compact, or bridge.
When it matters: When you want a camera style that matches how you shoot, carry, and swap lenses.

Importance: LOW

dslr
Weight
What it is: The total weight of the camera body, which affects comfort while carrying and shooting.
When it matters: When you carry the camera all day, travel often, or prefer a lighter setup.

Importance: MEDIUM

Good value: 500 g or less

820 g
Pentax K-3 Mark III weighs 820 g which is heavier than 90.4% of cameras.
Width
What it is: The width of the camera body, measured from side to side.
When it matters: When compact packing, grip comfort, or bag fit matters to you.

Importance: LOW

134.5 mm
Pentax K-3 Mark III has a width of 134.5 mm which is wider than 81.1% of cameras and equal to that of 0.2% of cameras.
Height
What it is: The height of the camera body, measured from top to bottom.
When it matters: When you care about how compact the camera feels in a bag or in hand.

Importance: LOW

103.5 mm
Pentax K-3 Mark III has a height of 103.5 mm which is taller than 87.4% of cameras.
Thickness
What it is: The depth of the device profile, excluding the camera bump unless specified.
When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

Importance: LOW

73.5 mm
Pentax K-3 Mark III has a thickness of 73.5 mm which is thicker than 66.7% of cameras and equal to that of 0.2% of cameras.
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Battery life (CIPA)
What it is: The official battery endurance estimate measured under CIPA test methodology, usually expressed in shots per charge.
When it matters: When you need realistic expectations for how many shots you can take before carrying a spare battery.

Importance: MEDIUM

Good value: At least 400 shots

800 shots
Pentax K-3 Mark III has a CIPA-rated battery life of 800 shots, which is longer than that of 92% of cameras and equal to that of 0.5% of cameras.
Battery capacity
What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
When it matters: When you want a general idea of how large the battery is physically.

Importance: LOW

Good value: At least 1,500 mAh

1,860 mAh
Pentax K-3 Mark III has a battery capacity of 1,860 mAh which is larger than the batteries in 82.6% of cameras and equal to those in 2.6% of cameras.
Removable battery
What it is: Indicates whether the flight battery can be removed and swapped by the user.
When it matters: When you want to swap batteries quickly between flights.

Importance: LOW

yes
Pentax K-3 Mark III has a removable battery, and 98.7% of cameras include one.
USB Power Delivery (PD)
What it is: Support for the USB Power Delivery standard for higher-power charging or external power supply over USB-C.
When it matters: When you want faster USB-C charging or the ability to power the camera externally for longer sessions.

Importance: LOW

yes
Pentax K-3 Mark III supports USB Power Delivery. 10% of cameras support USB Power Delivery.
Supports USB PD power supply.
Wi-Fi connectivity
What it is: Indicates whether the camera has built-in Wi-Fi for image transfer, remote control, or network features.
When it matters: When you want to transfer photos wirelessly, control the camera from a phone, or use supported network workflows.

Importance: LOW

yes
Pentax K-3 Mark III supports Wi-Fi. This feature is available on 47.8% of cameras.
802.11 b/g/n
Wi-Fi version
What it is: The specific generation of Wi-Fi standards supported (e.g., Wi-Fi 6, Wi-Fi 7), determining maximum speed and efficiency.
When it matters: When you have a high-speed router and want faster downloads with less congestion.

Importance: LOW

Wi-Fi 4 (802.11n)
Pentax K-3 Mark III uses Wi-Fi version Wi-Fi 4 (802.11n) which is newer than that of 54.2% of cameras and equal to that of 35.6% of cameras.
Bluetooth connectivity
What it is: Indicates whether the camera supports Bluetooth for pairing, remote control, or file transfer.
When it matters: When you want quick wireless pairing with a phone, remote control, or location syncing.

Importance: LOW

yes
Pentax K-3 Mark III has Bluetooth. 22.6% of cameras support Bluetooth.
Bluetooth 4.2.
Bluetooth version
What it is: The Bluetooth version supported by the camera for wireless pairing and low-power connections.
When it matters: When you want more efficient wireless pairing, better range, or newer Bluetooth features.

Importance: LOW

4.2
Pentax K-3 Mark III supports Bluetooth version 4.2 which is newer than that supported by 86.4% of cameras and equal to that of 9.6% of cameras.
USB Type-C
What it is: A modern, reversible connector used for charging, data transfer, and sometimes audio or video output.
When it matters: When you want a reversible cable that handles charging, data, and accessories universally.

Importance: LOW

yes
Pentax K-3 Mark III features USB Type-C. 14.5% of cameras use USB-C ports.
Data and power.
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Pentax K-3 Mark III vs the average camera

  • 1,593,600 higher max ISO
    Pentax K-3 Mark III has a higher max ISO than the average camera (1,600,000 vs 6,400). The average camera reaches a max ISO of 6,400.
    What it is: The ISO ceiling shows the highest sensor sensitivity available for darker scenes.
    When it matters: When you shoot in more difficult lighting.

    Importance: MEDIUM

    Good value: At least ISO 25,600

    Pentax K-3 Mark III has a higher max ISO than the average camera (1,600,000 vs 6,400). The average camera reaches a max ISO of 6,400.1,600,000 vs 6,400
  • In-body stabilization
    Pentax K-3 Mark III supports in-body stabilization, the average camera does not.
    5-axis in-body stabilization.
    What it is: A stabilization system that physically moves the image sensor to reduce shake during handheld shooting.
    When it matters: When you often shoot handheld and want sharper results at slower shutter speeds without relying only on lens stabilization.

    Importance: MEDIUM

    Pentax K-3 Mark III supports in-body stabilization, the average camera does not.
  • Phase-detect AF for photos
    Pentax K-3 Mark III supports phase-detection autofocus for photos, the average camera does not.
    What it is: Autofocus technology that measures phase differences to lock focus quickly and accurately for still photography.
    When it matters: When you want faster and more reliable autofocus for still photos, especially with moving subjects.

    Importance: HIGH

    Pentax K-3 Mark III supports phase-detection autofocus for photos, the average camera does not.
  • 6.3 fps faster mechanical burst
    Pentax K-3 Mark III has a faster mechanical burst rate than the average camera (12 fps vs 5.7 fps). The average camera shoots at 5.7 fps.
    What it is: The maximum burst rate the camera can achieve using its mechanical shutter, measured in frames per second.
    When it matters: When you photograph sports, wildlife, or action and want more chances to catch the exact moment.

    Importance: MEDIUM

    Good value: At least 10 fps

    Pentax K-3 Mark III has a faster mechanical burst rate than the average camera (12 fps vs 5.7 fps). The average camera shoots at 5.7 fps.12 fps vs 5.7 fps
  • Human eye AF
    Pentax K-3 Mark III supports human eye-detection AF, the average camera does not.
    What it is: Autofocus detection designed to identify and prioritize human eyes for portrait and action shooting.
    When it matters: When you shoot portraits, weddings, or events and want the camera to prioritize people’s eyes automatically.

    Importance: LOW

    Pentax K-3 Mark III supports human eye-detection AF, the average camera does not.
  • 9.53 MP higher resolution on the main camera
    Pentax K-3 Mark III has a higher main camera resolution than the average camera (25.7 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.
    What it is: The effective resolution of the camera sensor, measured in megapixels (MP). Higher megapixels can capture more detail.
    When it matters: When you want high-resolution photos that allow more cropping or larger prints.

    Importance: HIGH

    Good value: At least 20 MP

    Pentax K-3 Mark III has a higher main camera resolution than the average camera (25.7 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.25.73 MP vs 16.2 MP
  • Dual card slots
    Pentax K-3 Mark III offers dual card slots, the average camera does not. 13.3% of cameras offer them.
    What it is: Indicates whether the camera offers two memory card slots for backup, overflow, or file separation.
    When it matters: When you want backup recording, overflow capacity, or separate file handling for more demanding shoots.

    Importance: LOW

    Pentax K-3 Mark III offers dual card slots, the average camera does not. 13.3% of cameras offer them.
  • 470 shots longer battery life
    Pentax K-3 Mark III has longer battery life than the average camera (800 shots vs 330 shots). The average camera delivers 330 shots per charge.
    What it is: The official battery endurance estimate measured under CIPA test methodology, usually expressed in shots per charge.
    When it matters: When you need realistic expectations for how many shots you can take before carrying a spare battery.

    Importance: MEDIUM

    Good value: At least 400 shots

    Pentax K-3 Mark III has longer battery life than the average camera (800 shots vs 330 shots). The average camera delivers 330 shots per charge.800 shots vs 330 shots
  • 0.2 in larger screen
    Pentax K-3 Mark III has a larger screen than the average camera (3.2 in vs 3 in). The average camera has a screen size of 3 in.
  • Has a touchscreen
    Pentax K-3 Mark III has a touchscreen, the average camera does not. 36.6% of cameras support touchscreen input.
  • 10 more customizable buttons
    Pentax K-3 Mark III has more customizable buttons than the average camera (10 vs 0). The average camera offers 0 customizable buttons.
  • Better viewfinder type
    Pentax K-3 Mark III uses a more advanced viewfinder than the average camera (optical vs none).
  • 34.6% higher magnification
    Pentax K-3 Mark III has a higher viewfinder magnification than the average camera (1.1x vs 0.78x). The average camera has a viewfinder magnification of 0.78x.
  • 1,593,600 higher max ISO
    Pentax K-3 Mark III has a higher max ISO than the average camera (1,600,000 vs 6,400). The average camera reaches a max ISO of 6,400.
  • 9.53 MP higher resolution on the main camera
    Pentax K-3 Mark III has a higher main camera resolution than the average camera (25.7 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.
  • Uses a BSI sensor
    Pentax K-3 Mark III uses a BSI sensor, the average camera does not. 34.8% of cameras use a BSI sensor.
  • Sensor cleaning system
    Pentax K-3 Mark III includes a sensor cleaning system, the average camera does not.
  • 8 newer
    Pentax K-3 Mark III is newer than the average camera (2021 vs 2013). The average camera was released in 2013.
  • 0.42 µm larger main-camera pixels
    Pentax K-3 Mark III has a higher main camera pixel size than the average camera (3.8 µm vs 3.34 µm). The average camera has a main camera pixel size of 3.34 µm.
  • In-body stabilization
    Pentax K-3 Mark III supports in-body stabilization, the average camera does not.
  • Phase-detect AF for photos
    Pentax K-3 Mark III supports phase-detection autofocus for photos, the average camera does not.
  • 6.3 fps faster mechanical burst
    Pentax K-3 Mark III has a faster mechanical burst rate than the average camera (12 fps vs 5.7 fps). The average camera shoots at 5.7 fps.
  • Human eye AF
    Pentax K-3 Mark III supports human eye-detection AF, the average camera does not.
  • 1.5 stops higher CIPA stabilization rating
    Pentax K-3 Mark III has a higher CIPA stabilization rating than the average camera (5.5 stops vs 4 stops). The average camera has a CIPA stabilization rating of 4 stops.
  • 1,170 s longer maximum exposure
    Pentax K-3 Mark III supports a longer maximum exposure than the average camera (1,200 s vs 30 s). The average camera supports a longest shutter speed of 30 s.
  • Built-in AF motor
    Pentax K-3 Mark III has a built-in focus motor, the average camera does not.
  • 200,000 more shutter cycles
    Pentax K-3 Mark III has a higher shutter durability than the average camera (300,000 vs 100,000). The average camera is rated for 100,000 shutter cycles.
  • Lossless compressed RAW
    Pentax K-3 Mark III supports lossless compressed RAW, while the average camera does not.
  • Supports touch autofocus
    Pentax K-3 Mark III supports touch autofocus, the average camera does not. 34.9% of cameras support touch autofocus.
  • 18 more AF points
    Pentax K-3 Mark III has more focus points than the average camera (41 vs 23). The average camera offers 23 focus points.
  • Includes headphone output
    Pentax K-3 Mark III includes a headphone output, the average camera does not.
  • Has microphone input
    Pentax K-3 Mark III has microphone input, the average camera does not.
  • Supports slow-motion video
    Pentax K-3 Mark III supports slow-motion video, the average camera does not.
  • 1920 px higher video resolution
    Pentax K-3 Mark III records higher-resolution video than the average camera (3,840 px vs 1920 px). The average camera records at 1920 px.
  • 3.33x higher video bitrate
    Pentax K-3 Mark III has a higher video bitrate than the average camera (100 Mbps vs 30 Mbps). The average camera records at 30 Mbps.
  • Clean HDMI output
    Pentax K-3 Mark III offers clean HDMI output, the average camera does not.
  • Supports live streaming
    Pentax K-3 Mark III supports live streaming, the average camera does not.
  • Built-in timelapse
    Pentax K-3 Mark III includes timelapse capture, the average camera does not.
  • Supports 24p cinema mode
    Pentax K-3 Mark III supports 24p cinema mode, the average camera does not. 44% of cameras support this mode.
  • 470 shots longer battery life
    Pentax K-3 Mark III has longer battery life than the average camera (800 shots vs 330 shots). The average camera delivers 330 shots per charge.
  • 740 mAh larger battery capacity
    Pentax K-3 Mark III has a higher battery capacity than the average camera (1,860 mAh vs 1,120 mAh). The average camera has a battery capacity of 1,120 mAh.
  • USB Power Delivery
    Pentax K-3 Mark III supports USB Power Delivery, the average camera does not.
  • Dual card slots
    Pentax K-3 Mark III offers dual card slots, the average camera does not. 13.3% of cameras offer them.
  • Has USB Type-C
    Pentax K-3 Mark III has a USB Type-C port, the average camera does not. 14.5% of cameras use USB-C.
  • Has Bluetooth
    Pentax K-3 Mark III supports Bluetooth, the average camera does not. 22.7% of cameras support Bluetooth.
  • Supports Wi-Fi connectivity
    Pentax K-3 Mark III supports Wi-Fi, the average camera does not. 47.8% of cameras support Wi-Fi.
  • Smartphone remote control
    Pentax K-3 Mark III supports smartphone remote control, the average camera does not. 46.2% of cameras support smartphone remote control.
  • Newer USB version
    Pentax K-3 Mark III supports a newer USB version than the average camera (USB 3.2 Gen 1 vs USB 2.0). The average camera uses USB 2.0.
  • 2.08x heavier
    Pentax K-3 Mark III is heavier than the average camera (820 g vs 395 g). The average camera weighs 395 g.
  • No flash
    Pentax K-3 Mark III does not have a built-in flash, the average camera does. 73.4% of cameras have a flash.
  • 29.6 mm taller body
    Pentax K-3 Mark III is taller than the average camera (103.5 mm vs 73.9 mm). The average camera has a height of 73.9 mm.
  • 14.6 mm wider
    Pentax K-3 Mark III is wider than the average camera (134.5 mm vs 119.9 mm). The average camera has a width of 119.9 mm.
  • 27.5 mm thicker
    Pentax K-3 Mark III is thicker than the average camera (73.5 mm vs 46 mm). The average camera has a thickness of 46 mm.
  • 2.08x heavier
    Pentax K-3 Mark III is heavier than the average camera (820 g vs 395 g). The average camera weighs 395 g.
    What it is: The total weight of the camera body, which affects comfort while carrying and shooting.
    When it matters: When you carry the camera all day, travel often, or prefer a lighter setup.

    Importance: MEDIUM

    Good value: 500 g or less

    Pentax K-3 Mark III is heavier than the average camera (820 g vs 395 g). The average camera weighs 395 g.820 g vs 395 g
  • No flash
    Pentax K-3 Mark III does not have a built-in flash, the average camera does. 73.4% of cameras have a flash.
    What it is: Indicates the presence of an integrated light source to illuminate subjects in low-light conditions.
    When it matters: When you need a quick built-in light for fill flash or simple low-light shots.

    Importance: LOW

    Pentax K-3 Mark III does not have a built-in flash, the average camera does. 73.4% of cameras have a flash.
  • 29.6 mm taller body
    Pentax K-3 Mark III is taller than the average camera (103.5 mm vs 73.9 mm). The average camera has a height of 73.9 mm.
    What it is: The height of the camera body, measured from top to bottom.
    When it matters: When you care about how compact the camera feels in a bag or in hand.

    Importance: LOW

    Pentax K-3 Mark III is taller than the average camera (103.5 mm vs 73.9 mm). The average camera has a height of 73.9 mm.103.5 mm vs 73.9 mm
  • 6.07x more expensive
    Pentax K-3 Mark III is more expensive than the average camera (£1,760 vs £290).
    Pentax K-3 Mark III is more expensive than the average camera (£1,760 vs £290).£1,760 vs £290
  • 14.6 mm wider
    Pentax K-3 Mark III is wider than the average camera (134.5 mm vs 119.9 mm). The average camera has a width of 119.9 mm.
    What it is: The width of the camera body, measured from side to side.
    When it matters: When compact packing, grip comfort, or bag fit matters to you.

    Importance: LOW

    Pentax K-3 Mark III is wider than the average camera (134.5 mm vs 119.9 mm). The average camera has a width of 119.9 mm.134.5 mm vs 119.9 mm
  • 27.5 mm thicker
    Pentax K-3 Mark III is thicker than the average camera (73.5 mm vs 46 mm). The average camera has a thickness of 46 mm.
    What it is: The depth of the device profile, excluding the camera bump unless specified.
    When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

    Importance: LOW

    Pentax K-3 Mark III is thicker than the average camera (73.5 mm vs 46 mm). The average camera has a thickness of 46 mm.73.5 mm vs 46 mm
  • 5.2% worse value for money
    Pentax K-3 Mark III has a worse value-for-money score than the average camera (5.92 vs 6.224).
    What it is: An indicator that combines the camera's overall rating with its cost.
    When it matters: When you want to know how much overall quality you get for the price.
    Pentax K-3 Mark III has a worse value-for-money score than the average camera (5.92 vs 6.224).5.92 vs 6.22

Graphic comparison of Pentax K-3 Mark III and

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Third-party reviews

What customers like about Pentax K-3 Mark III?

  • Excellent ergonomics and premium build quality that feels 'built like a tank' with robust weather sealing
  • Large, bright optical viewfinder with 100% coverage and impressive magnification
  • Superb image quality with appealing color rendition (especially for skin tones, reds, and greens)
  • Highly effective in-body image shake reduction (stabilization)
  • Responsive touchscreen interface and intuitive menu systems
  • Great battery life and tactile controls well-placed for intuitive use

What customers dislike about Pentax K-3 Mark III?

  • High price point for an APS-C DSLR camera
  • Inconsistent continuous autofocus (AF) performance and tracking for moving subjects
  • Limited buffer capacity can restrict prolonged high-speed burst shooting
  • Video capabilities are average, featuring a heavy crop in 4K resolution
  • Black focus points in the optical viewfinder can sometimes be difficult to see against certain backgrounds

Expert reviews

D
dpreview.com
30/03/2021

The Pentax K-3 Mark III is a premium APS-C DSLR designed for traditional photographers, featuring a 26MP BSI CMOS sensor, a 1.05x optical viewfinder, and 5.5-stop in-body image stabilization. Its robust magnesium-alloy construction, 12 fps burst rate, and improved 101-point SA FOX 13 AF system are key advantages. However, the camera carries a high $2,000 launch price and features a...Read more

A
amateurphotographer.com
12/07/2021

The Pentax K-3 Mark III is lauded as a high-end APS-C DSLR offering exceptional image quality, a robust weather-sealed chassis, and an industry-leading 1.05x magnification optical viewfinder. Key strengths include effective 5-axis in-body image stabilization and extensive tactile controls, catering to dedicated users who prefer a traditional DSLR experience. Conversely, the review...Read more

D
digitalcameraworld.com
11/08/2021

The Pentax K-3 Mark III is a powerful, rugged APS-C DSLR equipped with a 25.7-megapixel back-illuminated sensor, a PRIME V processing engine, and a 5-axis in-body image stabilization system offering up to 5.5 stops of shake compensation. It delivers exceptional still image quality, boasting an impressive dynamic range that excels at higher ISO sensitivities up to 25,600, along with...Read more

P
photofocus.com
05/08/2021

The Pentax K-3 Mark III is a rugged, magnesium-alloy APS-C DSLR built like a tank with exceptional weather sealing, offering the best autofocus and tracking system Pentax has produced to date. It excels in handling due to its deep, comfortable ergonomic grip and highly customizable layout featuring ten remappable buttons designed to keep users out of the menus. Performance-based...Read more

S
shutterbug.com
07/06/2021

The Shutterbug review highlights the Pentax K-3 III as a robust, high-performance APS-C DSLR, praising its exceptional build quality, ergonomic design, and accurate autofocus system. Key strengths include sharp, high-contrast imagery with natural color rendition, cementing its status as a premium, feature-rich camera for dedicated enthusiasts. However, the review notes that the...Read more

8
85mm-photography.com
30/03/2021

The Pentax K3 III is a highly responsive APS-C flagship DSLR featuring a 26-megapixel five-axis stabilised BSI sensor, an upgraded processor, and a dramatically modernised touchscreen menu interface. Designed as a robust, premium product built to handle harsh conditions, its standout features include a massive, full-frame-sized optical viewfinder and a significantly faster autofocus...Read more

M
mikemuizebelt.nl
30/03/2021

In his review of the Pentax K-3 Mark III, Mike Muizebelt highlights a robust APS-C camera featuring an overhauled design with exceptional build quality and a high-coverage, 1.05x magnification optical viewfinder. The camera is praised for its significantly improved autofocus, specifically offering precise subject tracking and a redesigned mirror/shutter mechanism that reduces...Read more

P
photoark.co.uk
26/11/2024

Pentax K-3 III Review Summary The Pentax K-3 III is a highly robust APS-C DSLR that aggressively embraces traditional reflex technology in a market heavily dominated by mirrorless systems. Reviewer Steven praises its exceptionally bright and contrasty optical viewfinder, which outperforms classic film camera finders and makes manual focusing effortless. The camera features an...Read more

P
pentaxforums.com
23/07/2026

The Pentax K-3 Mark III is lauded as a robust, top-tier APS-C DSLR featuring significant upgrades, including a 25.7-megapixel sensor, exceptional build quality with extensive weather sealing, and an impressive 1.05x optical viewfinder. Its re-engineered 101-point autofocus system offers best-in-class performance for the brand, producing high-quality images with excellent color and...Read more

D
digitalkamera.de
17/06/2021

The Digitalkamera.de review highlights the Pentax K-3 Mark III as a robust, premium APS-C DSLR for traditionalists, featuring a 25.7-megapixel sensor with excellent image sharpness, 5-axis IBIS, and an exceptionally bright 1.05x optical viewfinder. Key advantages include its durable magnesium alloy weather-sealed body, extensive physical controls, and an improved 101-point...Read more

C
chip.de
25/08/2021

The Pentax K-3 III is an APS-C DSLR camera that delivers outstanding image quality, receiving a dynamic test rating of "Good" (1.9) as of June 2026. Its primary advantages include an integrated in-body image stabilizer that allows a tolerance of three to four aperture stops, a robust weather-sealed magnesium body, and excellent handling thanks to deep button customization options....Read more

P
photoinfos.com
01/04/2021

The review evaluates the Pentax K-3 Mark III, Ricoh's 2021 flagship 25.5-megapixel APS-C DSLR camera. The reviewer praises its outstanding low-light capabilities, noting that its maximum ISO of 1.6 million delivers highly usable results at ISO 12,800 and remains functional even up to ISO 51,200. Additionally, the camera features a vastly improved dual-autofocus system with 101 AF...Read more

F
fotomagazin.de
18/05/2022

The Pentax K-3 Mark III review by fotoMAGAZIN highlights it as a highly capable APS-C DSLR that excels in rugged durability and traditional shooting comfort. Major advantages include its incredibly robust magnesium-aluminum alloy body, which is sealed with 95 protective joints against dust and moisture. Additionally, it is praised for its integrated 5-axis "Shake Reduction" image...Read more

8
85mm-photography.com
23/07/2026

Based on the hands-on review of the pre-production Pentax K3 III, this APS-C flagship DSLR marks a major technical evolution for the brand, offering premium build quality that feels durable enough to "drive nails into a wall". The camera's standout feature is its massive, bright optical viewfinder, which delivers a full-frame feel and keeps the photographer deeply connected to the...Read more

N
nikon-fotografie.de
18/01/2024

The Pentax K-3 Mark III Monochrome review highlights superior black-and-white image quality, featuring exceptional noise performance at high ISO and enhanced sharpness due to the removal of the color filter array. It retains traditional, robust DSLR ergonomics, offering specialized in-camera image profiles like Standard, Hard, and Soft for refined contrast. Conversely, the review...Read more

D
digitec.ch
13/07/2021

The Pentax K-3 Mark III, reviewed on Digitec, is a specialized 26-megapixel APS-C DSLR designed for traditional enthusiasts, featuring an exceptionally large, bright optical viewfinder and a robust, weather-sealed body with, extensive customization options. Its strengths include superb ergonomics, a highly functional joystick for AF tracking, and excellent image quality with strong...Read more

P
pictures-magazin.de
25/02/2022

The Pentax K-3 Mark III review by Hans Günther Beer highlights the camera as an exceptionally robust, completely redesigned 25.7-megapixel APS-C DSLR tailored for outdoor and nature photographers. The camera stands out for its tank-like, magnesium-alloy build quality and top-tier weather sealing, offering crisp tactile feedback despite its heavy gaskets. Key operational strengths...Read more

L
lesnumeriques.com
18/06/2021

The Pentax K-3 Mark III is an expert-level APS-C DSLR camera designed specifically for photographers who prioritize an authentic optical viewfinder experience over mirrorless alternatives. The review highlights several notable strengths, including its robust, weather-sealed magnesium alloy construction and an exceptional optical viewfinder with 1.05x magnification, making it one of...Read more

P
photoklub.com
10/05/2021

The Pentax K-3 Mark III marks a significant evolutionary step for the brand's APS-C DSLR lineup, released nearly six years after its predecessor, the Mark II. Reviewers and long-time users praise the camera's exceptional optical viewfinder, noting that its larger, brighter view offers instant visual comfort and serves as a major point of differentiation in a market dominated by...Read more

G
galaxus.fr
13/07/2021

The Pentax K-3 Mark III is a specialized APS-C DSLR designed for purists, featuring a rugged, weather-sealed magnesium alloy body, excellent ergonomics, and deep customization options like pixel shift and star tracking. Its core strengths lie in its high-quality construction, robust build, and effective 5.5-stop image stabilization for dedicated photography. Conversely, the camera...Read more

C
camerarace.com
31/03/2026

The Pentax K-3 Mark III is a rugged, tropicalised APS-C DSLR offering exceptional weather sealing, a 12 fps burst rate, and an improved autofocus system. Key advantages include its 5.5-stop in-body stabilization for low-light, dual SD slots (one UHS-II), and a high-resolution viewfinder. Limitations include a fixed rear display, lack of a built-in flash, and a significant crop...Read more

A
arnaud-dauphin.com
27/03/2026

The review of the Pentax K-3 Mark III Black by Gabrielle Gautier on Gastronomie Photos highlights it as an exceptional APS-C DSLR camera that seamlessly blends performance with robust build quality. Designed for demanding photographers, it features a 25.7 MP sensor, 4K video resolution (2160p), and a redesigned optical viewfinder that offers 100% field coverage and enhanced...Read more

D
digitec.ch
13/07/2021

The Digitec review highlights the Pentax K-3 Mark III as a robust, high-end APS-C DSLR featuring extensive customization, an exceptional 1.05x optical viewfinder, and advanced 5-axis image stabilization supporting tools like Astrotracer. While praised for its rugged construction and precise, deeply customizable settings, the camera is limited by a fixed rear monitor that restricts...Read more

P
photolari.com
01/06/2021

The Pentax K-3 III is an APS-C DSLR camera priced at €2000, designed specifically to appeal to classic photography purists and loyal Pentax users who prefer optical viewfinders over mirrorless transitions. On the positive side, the review highlights its exceptional, high-magnification optical viewfinder as the best ever tested on an APS-C camera, alongside a vastly improved, highly...Read more

J
juzaphoto.com
23/01/2023

The Pentax K-3 III is a highly solid, professionally built APS-C DSLR that uniquely embraces traditional reflex technology while integrating highly innovative computational photography software. During a real-world landscape test in Norway, the camera's 25.7-megapixel sensor demonstrated excellent dynamic range and strong high-ISO performance up to ISO 3200. Its standout features...Read more

F
fotografia.it
05/06/2021

The Pentax K-3 Mark III review highlights a heavily modernized flagship APS-C DSLR that prioritizes traditional, through-the-viewfinder still photography over video capabilities. Its standout feature is a newly engineered optical pentaprism viewfinder boasting a massive 1.05x magnification, achieving a full-frame-like viewing experience within a cropped sensor body. Alongside a...Read more

G
galaxus.it
13/07/2021

The Pentax K-3 Mark III is presented as a specialized, rugged DSLR tailored for traditional photographers, featuring exceptional build quality, an ergonomic grip, and an extraordinary depth of custom settings. It delivers solid image quality enhanced by a 5.5-stop stabilizer, enabling advanced features like pixel shift and astrotracing. Conversely, the review notes significant...Read more

F
fotografiafineart.it
27/02/2024

The webpage introduces a video review of the Pentax K3 Mark III. It is hosted by Damiano Durante on Fotografia Fine Art. The text outlines image evaluation under various lighting conditions. Key pros include its rugged, weather-sealed magnesium body. Ergonomics are excellent with a comfortable physical grip. The optical viewfinder offers a bright 1.05x magnification. It delivers...Read more

D
digitec.ch
13/07/2021

The Digitec review highlights the Pentax K-3 Mark III as a robust, highly customizable DSLR tailored for photography purists, praising its exceptional build quality, rugged weather-resistant design, and excellent ergonomics. It offers significant, deep customization options and solid out-of-the-box settings, though it is described as a niche tool for dedicated DSLR users....Read more

F
focus-review.com
27/01/2022

The Pentax K-3 Mark III stands out as a unique release from Ricoh, serving as one of the very few traditional DSLR cameras featuring an optical viewfinder and a mirror system in a market dominated by mirrorless alternatives. This model brings considerable upgrades over its predecessor, the Mark II, by introducing a new 26-megapixel BSI APS-C sensor paired with a PRIME V processor...Read more

M
mikemuizebelt.nl
30/03/2021

In his review, Mike Muizebelt describes the Pentax K-3 Mark III as a robust, overhauled APS-C DSLR offering exceptional build quality, superior weather sealing, and refined ergonomics. The camera excels in performance with a redesigned 1.05x optical viewfinder and an improved autofocus system suitable for fast-paced wildlife and sports shooting, while maintaining fast burst speeds...Read more

F
fotografiebeginner.nl
02/05/2023

The Pentax K-3 Mark III Monochrome is presented by FotografieBeginner.nl as a specialized APS-C DSLR for black-and-white photography, featuring a 25.73-megapixel sensor without a color filter for superior tonal depth. Key strengths include a robust, weather-sealed magnesium alloy build, 12fps continuous shooting, high ISO sensitivity up to 1,600,100, and solid battery performance....Read more

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