Panasonic LUMIX S 18 40mm F 4 5 6 3 Review | 54 Data compared

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  • Avg. price in UK: ~£510
  • Avg. price in US: ~$550
  • Lens mount: L-Mount
  • Maximum focal length: 40 mm
  • Maximum aperture (telephoto end): 6.3
  • Optical image stabilization: no
  • Maximum angle of view: 100 °

Panasonic LUMIX S 18 40mm F 4 5 6 3 review. Compare 54 technical specifications and user reviews to see how it ranks among camera lenses and if it is worth buying.

7.5

Overall score

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

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

Score components:

80.0%

7.4

Technical Score

20.0%

8.1

User score

Very good
7.4

Technical Score

What it is: An assessment of the camera lens's technical performance, covering eight key areas: sharpness, aperture flexibility, autofocus, stabilization, build quality, mount compatibility, close-focus performance, and design.

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

Score components:

35.0%

7.9

Optics & Aperture

24.0%

9.2

Build & Handling

20.0%

5.6

Focus & Controls

10.0%

9.0

Lab Scores

8.0%

4.2

Stabilization

3.0%

1.0

Mount & Format

Very good
8.1

User score

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

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

Score components:

70.0%

8.9

User reviews

30.0%

6.3

Popularity

User score:
United Kingdom
amazon
4.6
(96)
amazon
4.1
(29)
amazon
4.6
(15)
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4.6
(5)
United States
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4.1
(44)
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4.6
(14)
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4.6
(5)
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5.0
(2)

(Reviews last updated: July 2026)

Excellent
  • 6.9
    Low-light photography

    Score components:

    70.0%

    9.4

    Maximum aperture (telephoto end)

    30.0%

    1.0

    Optical image stabilization

  • 7.6
    Travel

    Score components:

    30.0%

    9.5

    Lens length

    25.0%

    8.3

    Lens diameter

    25.0%

    10

    Weather sealing (splashproof)

    20.0%

    1.0

    Optical image stabilization

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Best prices in UK

Best rankings

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

Verdict

The Panasonic Lumix S 18-40mm F4.5-6.3 is an ultra-compact, full-frame L-mount zoom lens featuring an 8-element optical design, a 62mm filter thread, and a lightweight 155g build. It offers a versatile wide-to-standard focal range with a closest focusing distance of 0.15m and robust dust, splash, and freeze resistance down to -10°C. Main pros include its record-breaking portability, fast and quiet autofocus optimized for 4K video, and effective focus breathing suppression for content creators. Cons include a relatively slow variable maximum aperture that limits low-light performance and the lack of internal optical image stabilisation.

Technical Specifications of Panasonic LUMIX S 18 40mm F 4 5 6 3

Technical Score

What it is: An assessment of the camera lens's technical performance, covering eight key areas: sharpness, aperture flexibility, autofocus, stabilization, build quality, mount compatibility, close-focus performance, and design.

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

Score components:

35.0%

7.9

Optics & Aperture

24.0%

9.2

Build & Handling

20.0%

5.6

Focus & Controls

10.0%

9.0

Lab Scores

8.0%

4.2

Stabilization

3.0%

1.0

Mount & Format

7.4
Panasonic LUMIX S 18 40mm F 4 5 6 3 has a technical score of 7.36 points, which is higher than 57.4% of camera lenses.
User score

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

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

Score components:

70.0%

8.9

User reviews

30.0%

6.3

Popularity

User score:
United Kingdom
amazon
4.6
(96)
amazon
4.1
(29)
amazon
4.6
(15)
amazon
4.6
(5)
United States
Amazon_logo.png
4.1
(44)
Amazon_logo.png
4.6
(14)
Amazon_logo.png
4.6
(5)
Amazon_logo.png
5.0
(2)

(Reviews last updated: July 2026)

8.1
Panasonic LUMIX S 18 40mm F 4 5 6 3 has a user score of 8.14 points, which is higher than 51.6% of camera lenses.
Popularity
What it is: An indicator based on the number of reviews received by the camera lens.
When it matters: When you want to see which camera lenses attract the most buyer attention and review activity.
6.3
Panasonic LUMIX S 18 40mm F 4 5 6 3 has a popularity of 6.3 points, which is lower than 50.2% of products in this category.
Ratio quality/price

What it is: An indicator that combines the camera lens'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%

7.5

Overall score

40.0%

7.8

Price

7.6
Panasonic LUMIX S 18 40mm F 4 5 6 3 has a quality-to-price ratio of 7.6 points, which is higher than 64.9% of products in this category.
Lens type
What it is: The optical category that indicates whether the lens is a prime, zoom, macro, fisheye, or another design.
When it matters: When you are choosing between a prime, zoom, macro, or specialty lens for the kind of subjects you shoot.

Importance: LOW

zoom
Lens mount
What it is: The mechanical and electronic interface that determines which cameras the lens can be attached to.
When it matters: When camera compatibility and access to the right lens ecosystem are central to your buying decision.

Importance: LOW

L-Mount
Sensor format coverage
What it is: The largest sensor size the lens is designed to cover without severe vignetting.
When it matters: When you need the lens to fully cover your camera sensor without heavy corner darkening.

Importance: LOW

Full-frame
Filter thread size
What it is: The diameter of the front filter thread used for screw-in filters and compatible accessories.
When it matters: When you plan to use screw-in filters such as polarizers, ND filters, or protective glass.

Importance: LOW

62 mm
Teleconverter compatibility
What it is: Whether the lens can be used with compatible teleconverters to extend focal length.
When it matters: When you want to extend reach for wildlife or sports without changing to a different long lens.

Importance: HIGH

no
Panasonic LUMIX S 18 40mm F 4 5 6 3 does not support teleconverters. 15.3% of camera lenses support teleconverters.
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Minimum focal length
What it is: The shortest focal length the lens can provide, which determines its widest framing.
When it matters: When wide framing matters for landscapes, interiors, architecture, or travel shots.

Importance: LOW

18 mm
Maximum focal length
What it is: The longest focal length the lens can reach, which determines its telephoto reach.
When it matters: When you need more reach for wildlife, sports, stage events, or distant details.

Importance: LOW

40 mm
Optical zoom
What it is: The ratio between the longest and shortest focal lengths available in the lens zoom range.
When it matters: When you want one lens to cover a broader range of compositions without swapping glass.

Importance: LOW

2.2x
Maximum angle of view
What it is: The widest scene the lens can capture at its shortest focal length.
When it matters: When you need to fit more of a room, skyline, or landscape into the frame.

Importance: LOW

100 °
Minimum angle of view
What it is: The narrowest scene the lens captures at its longest focal length.
When it matters: When you want tighter framing on faraway subjects without moving closer.

Importance: LOW

57 °
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Focus motor
What it is: The autofocus drive system responsible for moving lens elements into focus.
When it matters: When fast, quiet autofocus matters for video, wildlife, street shots, or moving subjects.

Importance: LOW

STM
Minimum focus distance
What it is: The shortest distance at which the lens can focus on a subject.
When it matters: When you like shooting details, food, flowers, or products from a very short distance.

Importance: MEDIUM

0.15 m
Panasonic LUMIX S 18 40mm F 4 5 6 3 focuses as close as 0.15 m, which is closer than 92.7% of camera lenses and equal to 2.1% of camera lenses.
Maximum reproduction ratio
What it is: The highest magnification the lens can achieve when focusing at its closest distance.
When it matters: When close-up magnification matters for macro work, textures, or small product details.

Importance: MEDIUM

0.28x
Panasonic LUMIX S 18 40mm F 4 5 6 3 reaches a reproduction ratio of 0.28x, which is higher than 78.8% of camera lenses and equal to 1.4% of camera lenses.
Full-time manual focus
What it is: The ability to adjust focus manually without leaving autofocus mode.
When it matters: When you want to fine-tune focus instantly without switching out of autofocus.

Importance: HIGH

yes
Panasonic LUMIX S 18 40mm F 4 5 6 3 supports full-time manual focus. 68.3% of camera lenses support full-time manual focus.
Internal focusing
What it is: A focusing design in which internal elements move while the outer barrel length stays unchanged.
When it matters: When you use polarizers, gimbals, or close-up setups that benefit from a lens that does not extend while focusing.

Importance: HIGH

yes
Panasonic LUMIX S 18 40mm F 4 5 6 3 supports internal focusing. 83.6% of camera lenses support internal focusing.
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Optical image stabilization
What it is: A hardware system that shifts optical elements to counteract camera shake and reduce blur.
When it matters: When you want steadier handheld shots and less blur, especially in low light or at longer focal lengths.

Importance: HIGH

no
Panasonic LUMIX S 18 40mm F 4 5 6 3 does not support optical image stabilization. 29% of camera lenses include optical image stabilization.
Stabilization effectiveness (CIPA stops)
What it is: The rated stabilizer benefit, measured in stops, under CIPA testing standards.
When it matters: When you are comparing stabilized lenses and want to know how much handheld shutter-speed advantage they offer.

Importance: HIGH

?
Weight
What it is: The total mass of the lens, affecting portability and handling balance on the camera body.
When it matters: When you carry a lens all day for travel, hiking, or event coverage and want to keep your kit manageable.

Importance: HIGH

180 g
Panasonic LUMIX S 18 40mm F 4 5 6 3 weighs 180 g, which is lighter than 91.4% of camera lenses and equal to the weight of 0.2% of camera lenses.
Lens length
What it is: The physical length of the lens body from mount to front edge.
When it matters: When bag space, balance, or front clearance matters in a compact travel or video setup.

Importance: HIGH

40.9 mm
Panasonic LUMIX S 18 40mm F 4 5 6 3 is 40.9 mm long, which is shorter than 93.6% of camera lenses and equal to the length of 0.1% of camera lenses.
Retracted length.
Lens diameter
What it is: The widest outer diameter of the lens barrel.
When it matters: When grip comfort, filter size, or fit inside a tight camera bag matters to you.

Importance: MEDIUM

67.9 mm
Panasonic LUMIX S 18 40mm F 4 5 6 3 has a diameter of 67.9 mm, which is slimmer than 78.7% of camera lenses.
Weather sealing (splashproof)
What it is: Protective sealing intended to resist splashes, dust, and light environmental exposure.
When it matters: When you often shoot outdoors in light rain, dust, or changing conditions.

Importance: HIGH

yes
Panasonic LUMIX S 18 40mm F 4 5 6 3 supports weather sealing. 50.2% of camera lenses support weather sealing.
Metal mount
What it is: A lens mount made of metal rather than plastic for greater durability at the camera connection point.
When it matters: When durability matters because you change lenses often or use heavier gear for work.

Importance: HIGH

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DxOMark overall score
What it is: The combined DxOMark lens rating based on lab-tested optical performance.
When it matters: When you want a quick lab-based summary of overall optical performance before comparing lenses in detail.

Importance: HIGH

?
DxOMark sharpness score
What it is: The DxOMark subscore that reflects how much detail the lens can resolve across the frame.
When it matters: When fine detail matters for landscapes, product work, or high-resolution cameras.

Importance: HIGH

?
DxOMark transmission
What it is: The measured light transmission of the lens, expressed as T-stop rather than nominal f-number.
When it matters: When real light loss matters for exposure consistency in studio, cinema, or mixed-lens shoots.

Importance: MEDIUM

?
DxOMark distortion
What it is: The DxOMark metric that measures how much the lens bends straight lines away from their true shape.
When it matters: When straight lines matter in architecture, interiors, copy work, or product photography.

Importance: MEDIUM

?
DxOMark vignetting
What it is: The DxOMark measurement of corner darkening relative to the center of the image.
When it matters: When even corner brightness matters for skies, studio backdrops, or clean product shots.

Importance: MEDIUM

?
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Panasonic LUMIX S 18 40mm F 4 5 6 3 vs the average camera lens

  • Has fluorine coating
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a fluorine coating, the average camera lens does not. 25.5% of camera lenses use a fluorine coating.
    What it is: A protective coating on exposed elements that repels water, oil, and dirt for easier cleaning.
    When it matters: When you shoot in rain, sea spray, or dusty places and want easier front-element cleaning.

    Importance: HIGH

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a fluorine coating, the average camera lens does not. 25.5% of camera lenses use a fluorine coating.
  • 345.4 g lighter
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is lighter than the average camera lens (180 g vs 525.4 g). The average lens weighs 525.4 g.
    What it is: The total mass of the lens, affecting portability and handling balance on the camera body.
    When it matters: When you carry a lens all day for travel, hiking, or event coverage and want to keep your kit manageable.

    Importance: HIGH

    Panasonic LUMIX S 18 40mm F 4 5 6 3 is lighter than the average camera lens (180 g vs 525.4 g). The average lens weighs 525.4 g.180 g vs 525.4 g
  • 51.1 mm shorter lens
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is shorter than the average camera lens (40.9 mm vs 92 mm). The average lens has a length of 92 mm.
    Retracted length.
    What it is: The physical length of the lens body from mount to front edge.
    When it matters: When bag space, balance, or front clearance matters in a compact travel or video setup.

    Importance: HIGH

    Panasonic LUMIX S 18 40mm F 4 5 6 3 is shorter than the average camera lens (40.9 mm vs 92 mm). The average lens has a length of 92 mm.40.9 mm vs 92 mm
  • Newer release date
    Panasonic LUMIX S 18 40mm F 4 5 6 3 was released more recently than the average camera lens.
    What it is: The date when the lens model was first officially introduced.
    When it matters: When you prefer a newer optical design with more modern autofocus, coatings, or stabilization features.

    Importance: LOW

    Panasonic LUMIX S 18 40mm F 4 5 6 3 was released more recently than the average camera lens.2024 vs 2016
  • 0.15 m shorter minimum focus distance
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a lower minimum focus distance than the average camera lens (0.2 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
    What it is: The shortest distance at which the lens can focus on a subject.
    When it matters: When you like shooting details, food, flowers, or products from a very short distance.

    Importance: MEDIUM

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a lower minimum focus distance than the average camera lens (0.2 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.0.15 m vs 0.3 m
  • 9.1 mm narrower lens barrel
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is slimmer than the average camera lens (67.9 mm vs 77 mm). The average lens has a diameter of 77 mm.
    What it is: The widest outer diameter of the lens barrel.
    When it matters: When grip comfort, filter size, or fit inside a tight camera bag matters to you.

    Importance: MEDIUM

    Panasonic LUMIX S 18 40mm F 4 5 6 3 is slimmer than the average camera lens (67.9 mm vs 77 mm). The average lens has a diameter of 77 mm.67.9 mm vs 77 mm
  • 1 more aspherical elements
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has more aspherical elements than the average camera lens (3 vs 2). The average lens has 2 aspherical elements.
    What it is: Specially shaped lens elements used to reduce distortion and improve sharpness with fewer optical compromises.
    When it matters: When edge sharpness and lower distortion matter in wide-angle, travel, or everyday shooting.

    Importance: MEDIUM

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has more aspherical elements than the average camera lens (3 vs 2). The average lens has 2 aspherical elements.3 vs 2
  • 0.09 x higher maximum reproduction ratio
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a higher maximum reproduction ratio than the average camera lens (0.3x vs 0.192x). The average lens has a maximum reproduction ratio of 0.192x.
    What it is: The highest magnification the lens can achieve when focusing at its closest distance.
    When it matters: When close-up magnification matters for macro work, textures, or small product details.

    Importance: MEDIUM

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a higher maximum reproduction ratio than the average camera lens (0.3x vs 0.192x). The average lens has a maximum reproduction ratio of 0.192x.0.28 x vs 0.192 x
  • 1 more aspherical elements
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has more aspherical elements than the average camera lens (3 vs 2). The average lens has 2 aspherical elements.
  • 0.15 m shorter minimum focus distance
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a lower minimum focus distance than the average camera lens (0.2 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
  • 0.09 x higher maximum reproduction ratio
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a higher maximum reproduction ratio than the average camera lens (0.3x vs 0.192x). The average lens has a maximum reproduction ratio of 0.192x.
  • Has fluorine coating
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a fluorine coating, the average camera lens does not. 25.5% of camera lenses use a fluorine coating.
  • 345.4 g lighter
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is lighter than the average camera lens (180 g vs 525.4 g). The average lens weighs 525.4 g.
  • 51.1 mm shorter lens
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is shorter than the average camera lens (40.9 mm vs 92 mm). The average lens has a length of 92 mm.
  • Newer release date
    Panasonic LUMIX S 18 40mm F 4 5 6 3 was released more recently than the average camera lens.
  • 9.1 mm narrower lens barrel
    Panasonic LUMIX S 18 40mm F 4 5 6 3 is slimmer than the average camera lens (67.9 mm vs 77 mm). The average lens has a diameter of 77 mm.
  • 3.5 higher f-number at telephoto end
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a dimmer maximum telephoto aperture than the average camera lens (f/6.3 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
  • 2 fewer aperture blades
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
  • Fixed lens hood
    Panasonic LUMIX S 18 40mm F 4 5 6 3 does not include a reversible lens hood, the average camera lens does. 79.6% of camera lenses include a reversible lens hood.
  • 3.5 higher f-number at telephoto end
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a dimmer maximum telephoto aperture than the average camera lens (f/6.3 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    What it is: The widest aperture available at the long end of the zoom range, affecting light intake and background blur.
    When it matters: When you shoot at the long end in low light or want stronger background blur for portraits and sports.

    Importance: HIGH

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has a dimmer maximum telephoto aperture than the average camera lens (f/6.3 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.6.3 vs 2.8
  • 2 fewer aperture blades
    Panasonic LUMIX S 18 40mm F 4 5 6 3 has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
    What it is: The number of diaphragm blades that shape the aperture opening and influence blur rendering.
    When it matters: When the look of out-of-focus highlights matters in portraits, close-ups, or cinematic video.

    Importance: HIGH

    Panasonic LUMIX S 18 40mm F 4 5 6 3 has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.7 vs 9
  • Fixed lens hood
    Panasonic LUMIX S 18 40mm F 4 5 6 3 does not include a reversible lens hood, the average camera lens does. 79.6% of camera lenses include a reversible lens hood.
    What it is: A hood design that can be mounted backward on the lens for more compact storage.
    When it matters: When compact packing matters and you want the hood stored neatly on the lens.

    Importance: LOW

    Panasonic LUMIX S 18 40mm F 4 5 6 3 does not include a reversible lens hood, the average camera lens does. 79.6% of camera lenses include a reversible lens hood.

Graphic comparison of Panasonic LUMIX S 18 40mm F 4 5 6 3 and

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Third-party reviews

What customers like about Panasonic LUMIX S 18 40mm F 4 5 6 3?

  • Extremely compact and lightweight, often cited as the world's smallest full-frame zoom lens
  • Versatile ultra-wide starting focal length of 18mm, ideal for vlogging and landscapes
  • Solid build quality with weather-sealed construction and fluorine coating
  • Good optical performance for its size, with decent sharpness in the center across the zoom range
  • Quick and smooth autofocus performance for both stills and video
  • Short minimum focusing distance of 15cm allows for impressive close-up shots

What customers dislike about Panasonic LUMIX S 18 40mm F 4 5 6 3?

  • Slow and variable maximum aperture (f/4.5–6.3), which limits performance in low-light conditions
  • Collapsible design requires manual extension before shooting, which can be an extra step during operation
  • Lack of built-in optical image stabilization (OIS), relying entirely on camera body stabilization
  • Noticeable distortion at the 18mm ultra-wide end
  • Often considered overpriced when purchased as a standalone lens compared to its kit value
  • Does not include a lens hood in the box

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Video reviews

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