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Canon EF 75 300mm F 4 5 6 III USM Review | 54 Data compared

Avg. price:~£190Lens mount:Canon EFMaximum focal length:300 mmMaximum aperture (telephoto end):5.6Optical image stabilization:noMaximum angle of view:32.2 °

Canon EF 75 300mm F 4 5 6 III USM Review: Compare 54 technical specifications and user reviews to see how this product ranks in the Camera lenses category and whether it is worth buying.

3.9

Overall score

Score
3.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components

80%

3.0

Technical score

20%

7.5

User score

â–¼Worse than 99% of camera-lenses
3.0

Technical score

Technical score
3.0/ 10
✕
What it is
An assessment of technical performance for products in the Camera lenses category across these key areas: Mount & Format, Optics & Aperture, Focus & Controls, Stabilization, Build & Handling, Lab Scores.
When it matters
When you want to compare camera lenses based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components

35%

2.2

Optics & Aperture

24%

3.7

Build & Handling

20%

2.5

Focus & Controls

10%

7.3

Lab Scores

8%

1.0

Stabilization

3%

1.0

Mount & Format

â–¼Worse than 99% of camera-lenses
7.5

User score

User score
7.5/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 87% of models
Score components

70%

9.6

User ratings

30%

2.7

Number of reviews

Based on 6 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 87% of camera-lenses
  • canon-ef-75-300mm-f-4-5-6-iii-usm
  • canon-ef-75-300mm-f-4-5-6-iii-usm
canon-ef-75-300mm-f-4-5-6-iii-usm
canon-ef-75-300mm-f-4-5-6-iii-usm

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Technical Specifications of camera lens Canon EF 75 300mm F 4 5 6 III USM

Technical score
Technical score
3.0/ 10
✕
What it is
An assessment of technical performance for products in the Camera lenses category across these key areas: Mount & Format, Optics & Aperture, Focus & Controls, Stabilization, Build & Handling, Lab Scores.
When it matters
When you want to compare camera lenses based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components:

35%

2.2

Optics & Aperture

24%

3.7

Build & Handling

20%

2.5

Focus & Controls

10%

7.3

Lab Scores

8%

1.0

Stabilization

3%

1.0

Mount & Format

3.0
User score
User score
7.5/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 87% of models
Score components

70%

9.6

User ratings

30%

2.7

Number of reviews

Based on 6 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
7.5
Popularity
Popularity
2.7/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Popularity:
Canon EF 75 300mm F 4 5 6 III USM has a popularity score of 2.7 points, which is lower than 87.5% of camera lenses.
2.7
Value for money
Value for money
5.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components:

60%

3.9

Overall score

40%

9.5

Price

5.6
Lens type
telephoto zoom
Lens mount
Canon EF
Sensor format coverage
Full-frame
Filter thread size
58 mm
Teleconverter compatibility
no
Teleconverter compatibility
no
â–¼ Worse than 15% of models
This camera lens does not support teleconverters. 15.3% of camera lenses support teleconverters.
Only unofficial third-party options are mentioned.
Show more
Minimum focal length
75 mm
Maximum focal length
300 mm
Optical zoom
4xx
Maximum angle of view
32.2 °
Minimum angle of view
8.2 °
Show more
Focus motor
micro USM
Minimum focus distance
1.5 m
Minimum focus distance
1.5 m
â–¼ Worse than 93% of models
Market range: <0.18 m – >1.1 m
This camera lens focuses as close as 1.5 m, which is farther than 93.1% of camera lenses and equal to 1.5% of camera lenses.
Maximum reproduction ratio
0.25xx
Maximum reproduction ratio
0.25x
â–² Better than 70% of models
Market range: <0.11 x – >0.39 x
This camera lens reaches a reproduction ratio of 0.25x, which is higher than 70% of camera lenses and equal to 4.5% of camera lenses.
Full-time manual focus
no
Full-time manual focus
no
â–¼ Worse than 68% of models
This camera lens does not support full-time manual focus. 68.4% of camera lenses support full-time manual focus.
Internal focusing
no
Internal focusing
no
â–¼ Worse than 84% of models
This camera lens does not support internal focusing. 83.7% of camera lenses support internal focusing.
Show more
Optical image stabilization
no
Optical image stabilization
no
â–¼ Worse than 29% of models
This camera lens does not support optical image stabilization. 29.1% of camera lenses include optical image stabilization.
Stabilization effectiveness (CIPA stops)
N/A
Weight
480 g
Weight
480 g
â–² Better than 53% of models
Market range: <171 g – >1.3k g
This camera lens weighs 480 g, which is lighter than 53.5% of camera lenses and equal to the weight of 0.5% of camera lenses.
Lens length
122 mm
Lens length
122 mm
â–¼ Worse than 75% of models
Market range: <46 mm – >189 mm
This camera lens is 122 mm long, which is longer than 75% of camera lenses and equal to the length of 0.3% of camera lenses.
Lens diameter
71 mm
Lens diameter
71 mm
â–² Better than 68% of models
Market range: <62.4 mm – >94.7 mm
This camera lens has a diameter of 71 mm, which is slimmer than 68.3% of camera lenses and equal to that of 0.8% of camera lenses.
Weather sealing (splashproof)
no
Weather sealing (splashproof)
no
â–¼ Worse than 50% of models
This camera lens does not support weather sealing. 50.3% of camera lenses support weather sealing.
Metal mount
no
Metal mount
no
â–¼ Worse than 94% of models
This camera lens does not use a metal lens mount. 93.7% of camera lenses use a metal lens mount.
Show more
DxOMark overall score
?
DxOMark sharpness score
?
DxOMark transmission
?
DxOMark distortion
?
DxOMark vignetting
1.8 EV
DxOMark vignetting
1.8 EV
â–¼ Worse than 86% of models
Market range: <0.7 EV – >1.9 EV
This camera lens has DxOMark vignetting of 1.8 EV, which is higher than that of 85.7% of camera lenses and equal to that of 3.4% of camera lenses.
Show more

Canon EF 75 300mm F 4 5 6 III USM vs the average camera lens

246810TotalMount & FormatOptics & ApertureFocus & ControlsStabilizationBuild & HandlingLab Scores
  • Has focus distance scale
    Focus distance scale
    yes
    â–² Better than 51% of models
    This camera lens has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
  • 0.06 x higher maximum reproduction ratio
    Maximum reproduction ratio
    0.25 x
    â–² Better than 70% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a higher maximum reproduction ratio than the average camera lens (0.3 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.25 x vs 0.192 x
  • 6 mm narrower lens barrel
    Lens diameter
    71 mm
    â–² Better than 68% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (71 mm vs 77 mm). The average lens has a diameter of 77 mm.
    71 mm vs 77 mm
  • 2.79x cheaper
    Canon EF 75 300mm F 4 5 6 III USM is cheaper than the average camera lens (£190 vs £530).
    £190 vs £530
  • 2.79x cheaper
    Canon EF 75 300mm F 4 5 6 III USM is cheaper than the average camera lens (£190 vs £530).
    £190 vs £530
  • Has focus distance scale
    Focus distance scale
    yes
    â–² Better than 51% of models
    This camera lens has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
  • 0.06 x higher maximum reproduction ratio
    Maximum reproduction ratio
    0.25 x
    â–² Better than 70% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a higher maximum reproduction ratio than the average camera lens (0.3 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.25 x vs 0.192 x
  • 6 mm narrower lens barrel
    Lens diameter
    71 mm
    â–² Better than 68% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (71 mm vs 77 mm). The average lens has a diameter of 77 mm.
    71 mm vs 77 mm
  • 2.8 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    5.6
    â–¼ Worse than 78% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/5.6 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    5.6 vs 2.8
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    â–¼ Worse than 50% of models
    This camera lens does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
  • 2 fewer aperture blades
    Aperture blades
    7
    â–¼ Worse than 61% of models
    Market range: <7 – >9
    This camera lens has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
    7 vs 9
  • No full-time manual focus
    Full-time manual focus
    no
    â–¼ Worse than 68% of models
    This camera lens does not support full-time manual focus, the average camera lens does. 68.4% of camera lenses support full-time manual focus.
  • No rounded blades
    Rounded aperture blades
    no
    â–¼ Worse than 88% of models
    This camera lens does not use rounded aperture blades, the average camera lens does. 87.8% of camera lenses use rounded aperture blades.
    7 blades.
  • No internal focusing
    Internal focusing
    no
    â–¼ Worse than 84% of models
    This camera lens does not support internal focusing, the average camera lens does. 83.7% of camera lenses support internal focusing.
  • No metal mount
    Metal mount
    no
    â–¼ Worse than 94% of models
    This camera lens does not use a metal lens mount, the average camera lens does. 93.6% of camera lenses use a metal lens mount.
  • 2 fewer aspherical elements
    Aspherical elements
    0
    â–¼ Worse than 70% of models
    Market range: <0 – >3
    This camera lens has fewer aspherical elements than the average camera lens (0 vs 2). The average lens has 2 aspherical elements.
    0 vs 2
  • 11% lower user score
    User score
    7.5/ 10
    ✕
    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 distribution
    ▼▼
    <55-66-77-88-99-10
    Canon EF 75 300mm F 4 5 6 III USM
    the average camera lens
    Canon EF 75 300mm F 4 5 6 III USM has a lower user score than the average camera lens (7.53 vs 8.360).
    7.53 vs 8.36
  • 2.7x less popular
    Canon EF 75 300mm F 4 5 6 III USM is less popular than the average camera lens (2.7 vs 7.3).
    2.7 vs 7.29
  • 23% worse value for money
    Canon EF 75 300mm F 4 5 6 III USM has a worse value-for-money score than the average camera lens (5.6 vs 6.9).
    5.6 vs 6.89
  • 2.8 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    5.6
    â–¼ Worse than 78% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/5.6 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    5.6 vs 2.8
  • 2 fewer aperture blades
    Aperture blades
    7
    â–¼ Worse than 61% of models
    Market range: <7 – >9
    This camera lens has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
    7 vs 9
  • No rounded blades
    Rounded aperture blades
    no
    â–¼ Worse than 88% of models
    This camera lens does not use rounded aperture blades, the average camera lens does. 87.8% of camera lenses use rounded aperture blades.
    7 blades.
  • 2 fewer aspherical elements
    Aspherical elements
    0
    â–¼ Worse than 70% of models
    Market range: <0 – >3
    This camera lens has fewer aspherical elements than the average camera lens (0 vs 2). The average lens has 2 aspherical elements.
    0 vs 2
  • 2 fewer low-dispersion elements
    Low-dispersion elements
    0
    â–¼ Worse than 76% of models
    Market range: <0 – >4
    This camera lens has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.
    0 vs 2
  • No full-time manual focus
    Full-time manual focus
    no
    â–¼ Worse than 68% of models
    This camera lens does not support full-time manual focus, the average camera lens does. 68.4% of camera lenses support full-time manual focus.
  • No internal focusing
    Internal focusing
    no
    â–¼ Worse than 84% of models
    This camera lens does not support internal focusing, the average camera lens does. 83.7% of camera lenses support internal focusing.
  • 1.2 m longer minimum focus distance
    Minimum focus distance
    1.5 m
    â–¼ Worse than 93% of models
    Market range: <0.18 m – >1.1 m
    This camera lens has a higher minimum focus distance than the average camera lens (1.5 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
    1.5 m vs 0.3 m
  • Rotating front element
    Non-rotating front element
    no
    â–¼ Worse than 97% of models
    This camera lens does not have a non-rotating front element, the average camera lens does. 96.8% of camera lenses have a non-rotating front element.
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    â–¼ Worse than 50% of models
    This camera lens does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
  • No metal mount
    Metal mount
    no
    â–¼ Worse than 94% of models
    This camera lens does not use a metal lens mount, the average camera lens does. 93.6% of camera lenses use a metal lens mount.
  • No lens hood
    Lens hood included
    no
    â–¼ Worse than 89% of models
    This camera lens does not include a lens hood, the average camera lens does. 88.7% of camera lenses include a lens hood.
  • Older release date
    Release date
    1999
    â–¼ Worse than 96% of models
    Market range: <2k – >2k
    This camera lens was released earlier than the average camera lens.
    April 1999
    1999 vs 2016
  • 29.75 mm longer lens
    Lens length
    122 mm
    â–¼ Worse than 75% of models
    Market range: <46 mm – >189 mm
    This camera lens is longer than the average camera lens (122 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    122 mm vs 92.25 mm
  • 0.6 EV more vignetting
    DxOMark vignetting
    1.800 EV
    â–¼ Worse than 86% of models
    Market range: <0.7 EV – >1.9 EV
    This camera lens has more vignetting than the average camera lens (1.8 EV vs 1.2 EV). The average lens has vignetting of 1.2 EV.
    1.800 EV vs 1.2 EV

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

T
the-digital-picture.com
28/04/2004
Summary of the review
[The-Digital-Picture] Canon EF 75-300mm f/4-5.6 III USM Lens Review
W
whatdigitalcamera.com
03/09/2007
Summary of the review
[What Digital Camera] Canon EF 75-300mm f/4-5.6 III USM Camera Lens Test Review
E
ephotozine.com
22/07/2005
Summary of the review
[ePHOTOzine] Canon 75-300mm USM III Interchangeable Lens Review
D
dxomark.com
April 1999 (Release Date)
Summary of the review
Canon EF 75-300mm f/4-5.6 III USM - DxOMark
B
bilderforum.de
05/06/2015
Summary of the review
Test: Canon 75-300 f/4-5.6 III USM (an der EOS 5D Mk II)
(Translated)Show original
W
web-done.de
30/09/2014
Summary of the review
Comparison of Telephoto Lenses: Canon EF 75-300mm vs. Sigma 70-300mm vs. Tamron 70-300mm
(Translated)Show original
D
dxomark.fr
29/01/2004
Summary of the review
Canon EF 75-300mm f/4-5.6 III USM - DXOMARK
(Translated)Show original
C
canonistas.com
30/05/2010
Summary of the review
Comparison: Canon EF 70-300mm vs Canon EF 75-300mm III USM
(Translated)Show original
R
radojuva.com
09/10/2012
Summary of the review
Canon EF 75-300mm f/4.0-5.6 III Review | Pleased
(Translated)Show original

Third-party reviews

Based on 6 buyer reviews from online shops.
Reviews last updated: July 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Canon EF 75 300mm F 4 5 6 III USM

  • Affordable entry-level price point for beginners
  • Lightweight and compact design for easy portability
  • Versatile 4x telephoto zoom range suitable for wildlife and sports
  • Decent image clarity and contrast in good lighting conditions
  • Compatible with both full-frame and APS-C Canon DSLRs
  • Easy to use with straightforward mechanical operation

What we don't like about Canon EF 75 300mm F 4 5 6 III USM

  • Lack of Image Stabilization (IS) leading to motion blur at long focal lengths
  • Noticeable drop in sharpness and 'softness' beyond 200mm
  • Significant chromatic aberration (purple and green fringing) in high-contrast areas
  • Slow and sometimes noisy autofocus (USM) that can struggle with fast action
  • Poor performance in low-light environments due to narrow variable aperture
  • Lower-end plastic build quality that can feel cheap or wobbly

Verdict

The Canon EF 75-300mm f/4-5.6 III USM is a compact, lightweight 4x telephoto zoom lens featuring a versatile focal range for full-frame and APS-C DSLRs. It is constructed with 13 elements in 9 groups, utilizes a 7-blade diaphragm for pleasing bokeh, and includes a Super Spectra coating to reduce flare and ghosting. Its primary advantages are its high affordability and the inclusion of a Micro USM (Ultrasonic Motor) for faster, quieter autofocus compared to standard DC motor versions. However, the lens lacks optical image stabilisation (IS), often suffers from significant chromatic aberration and softness at the 300mm end, and has a rotating front element that complicates the use of polarizing filters.

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