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Canon RF-S 3 9mm F 3 5 STM Dual Fisheye Review | 54 Data compared

Avg. price:~£1,140Lens mount:Canon RFMaximum focal length:3.9 mmMaximum aperture (telephoto end):3.5Optical image stabilization:noMaximum angle of view:144 °

Canon RF-S 3 9mm F 3 5 STM Dual Fisheye 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.

5.1

Overall score

Score
5.1/ 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
▼
<55-66-77-88-99-10
▼ Worse than 97% of models
Score components

80%

5.1

Technical score

20%

?

User score

▼Worse than 97% of camera-lenses
5.1

Technical score

Technical score
5.1/ 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
▼
<55-66-77-88-99-10
▼ Worse than 89% of models
Score components

35%

6.1

Optics & Aperture

24%

5.2

Build & Handling

20%

3.8

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

2.8

Mount & Format

▼Worse than 89% of camera-lenses
?

User score

User score
8.0/ 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
▼ Worse than 71% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image

Best prices

    N/A~ £1,140

Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of camera lens Canon RF-S 3 9mm F 3 5 STM Dual Fisheye

Technical score
Technical score
5.1/ 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
▼
<55-66-77-88-99-10
▼ Worse than 89% of models
Score components:

35%

6.1

Optics & Aperture

24%

5.2

Build & Handling

20%

3.8

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

2.8

Mount & Format

5.1
User score
User score
8.0/ 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
▼ Worse than 71% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 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
▼
<55-66-77-88-99-10
▼ Worse than 99% of models
Popularity:
Canon RF-S 3 9mm F 3 5 STM Dual Fisheye has a popularity score of 1 point, which is lower than 91.7% of camera lenses.
1.0
Value for money
Value for money
4.9/ 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
▼
<55-66-77-88-99-10
▼ Worse than 97% of models
Score components:

60%

5.1

Overall score

40%

4.5

Price

4.9
Lens type
fisheye
Lens mount
Canon RF
Sensor format coverage
APS-C
Filter thread size
N/A
Teleconverter compatibility
no
Teleconverter compatibility
no
▼ Worse than 15% of models
This camera lens does not support teleconverters. 15.3% of camera lenses support teleconverters.
Show more
Minimum focal length
3.9 mm
Maximum focal length
3.9 mm
Optical zoom
N/A
Maximum angle of view
144 °
Minimum angle of view
144 °
Show more
Focus motor
STM
Minimum focus distance
0.2 m
Minimum focus distance
0.2 m
▲ Better than 79% of models
Market range: <0.18 m – >1.1 m
This camera lens focuses as close as 0.2 m, which is closer than 79.4% of camera lenses and equal to 7% of camera lenses.
Maximum reproduction ratio
0.03xx
Maximum reproduction ratio
0.03x
▼ Worse than 100% of models
Market range: <0.11 x – >0.39 x
This camera lens reaches a reproduction ratio of 0.03x, which is lower than 99.8% of camera lenses and equal to 0.2% of camera lenses.
Full-time manual focus
yes
Full-time manual focus
yes
▲ Better than 32% of models
This camera lens supports full-time manual focus. 68.3% of camera lenses support full-time manual focus.
Electronic manual override support.
Internal focusing
no
Internal focusing
no
▼ 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
▼ 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
291 g
Weight
291 g
▲ Better than 76% of models
Market range: <171 g – >1.3k g
This camera lens weighs 291 g, which is lighter than 75.6% of camera lenses and equal to the weight of 0.2% of camera lenses.
Lens length
54.6 mm
Lens length
54.6 mm
▲ Better than 85% of models
Market range: <46 mm – >189 mm
This camera lens is 54.6 mm long, which is shorter than 85.3% of camera lenses.
Lens diameter
112.1 mm
Lens diameter
112.1 mm
▼ Worse than 95% of models
Market range: <62.4 mm – >94.7 mm
This camera lens has a diameter of 112.1 mm, which is wider than 95.4% of camera lenses.
Weather sealing (splashproof)
no
Weather sealing (splashproof)
no
▼ Worse than 50% of models
This camera lens does not support weather sealing. 50.3% of camera lenses support weather sealing.
Metal mount
yes
Metal mount
yes
▲ Better than 6% of models
This camera lens uses a metal lens mount. 93.6% of camera lenses use a metal lens mount.
Show more
DxOMark overall score
?
DxOMark sharpness score
?
DxOMark transmission
?
DxOMark distortion
?
DxOMark vignetting
?
Show more

Canon RF-S 3 9mm F 3 5 STM Dual Fisheye vs the average camera lens

246810TotalMount & FormatOptics & ApertureFocus & ControlsStabilizationBuild & HandlingLab Scores
  • Has drop-in filter support
    Drop-in / rear filter
    yes
    ★ Better than 93% of models
    This camera lens supports drop-in or rear filters, while the average camera lens does not.
    Rear 30.5 mm / gelatin filter holder.
  • 37.65 mm shorter lens
    Lens length
    54.6 mm
    ▲ Better than 85% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (54.6 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    54.6 mm vs 92.25 mm
  • 219 g lighter
    Weight
    291 g
    ▲ Better than 76% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (291 g vs 510 g). The average lens weighs 510 g.
    291 g vs 510 g
  • Newer release date
    Release date
    2024
    ★ Better than 95% of models
    Market range: <2k – >2k
    This camera lens was released more recently than the average camera lens.
    June 2024
    2024 vs 2016
  • 0.1 m shorter minimum focus distance
    Minimum focus distance
    0.2 m
    ▲ Better than 79% of models
    Market range: <0.18 m – >1.1 m
    This camera lens 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.
    0.2 m vs 0.3 m
  • Has drop-in filter support
    Drop-in / rear filter
    yes
    ★ Better than 93% of models
    This camera lens supports drop-in or rear filters, while the average camera lens does not.
    Rear 30.5 mm / gelatin filter holder.
  • 0.1 m shorter minimum focus distance
    Minimum focus distance
    0.2 m
    ▲ Better than 79% of models
    Market range: <0.18 m – >1.1 m
    This camera lens 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.
    0.2 m vs 0.3 m
  • 37.65 mm shorter lens
    Lens length
    54.6 mm
    ▲ Better than 85% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (54.6 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    54.6 mm vs 92.25 mm
  • 219 g lighter
    Weight
    291 g
    ▲ Better than 76% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (291 g vs 510 g). The average lens weighs 510 g.
    291 g vs 510 g
  • Newer release date
    Release date
    2024
    ★ Better than 95% of models
    Market range: <2k – >2k
    This camera lens was released more recently than the average camera lens.
    June 2024
    2024 vs 2016
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    ▼ 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
    ▼ 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 internal focusing
    Internal focusing
    no
    ▼ 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.
  • 2 fewer aspherical elements
    Aspherical elements
    0
    ▼ 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
  • 0.7 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    3.5
    ▼ Worse than 62% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/3.5 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    3.5 vs 2.8
  • No lens hood
    Lens hood included
    no
    ▼ 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.
  • 35.1 mm wider lens barrel
    Lens diameter
    112.1 mm
    ▼ Worse than 95% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is wider than the average camera lens (112.1 mm vs 77 mm). The average lens has a diameter of 77 mm.
    112.1 mm vs 77 mm
  • Fixed lens hood
    Reversible lens hood
    no
    ▼ Worse than 81% of models
    This camera lens does not include a reversible lens hood, the average camera lens does. 81.4% of camera lenses include a reversible lens hood.
  • 7.29x less popular
    Canon RF-S 3 9mm F 3 5 STM Dual Fisheye is less popular than the average camera lens (1 vs 7.3).
    1 vs 7.29
  • 40.1% worse value for money
    Canon RF-S 3 9mm F 3 5 STM Dual Fisheye has a worse value-for-money score than the average camera lens (4.92 vs 6.9).
    4.92 vs 6.89
  • 2.15x more expensive
    Canon RF-S 3 9mm F 3 5 STM Dual Fisheye is more expensive than the average camera lens (£1,140 vs £530).
    £1,140 vs £530
  • 4.5% lower user score
    User score
    8.0/ 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 RF-S 3 9mm F 3 5 STM Dual Fisheye
    the average camera lens
    Canon RF-S 3 9mm F 3 5 STM Dual Fisheye has a lower user score than the average camera lens (8.00 vs 8.360).
    8 vs 8.36
  • 2 fewer aperture blades
    Aperture blades
    7
    ▼ 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
  • 2 fewer aspherical elements
    Aspherical elements
    0
    ▼ 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
  • 0.7 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    3.5
    ▼ Worse than 62% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/3.5 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    3.5 vs 2.8
  • No internal focusing
    Internal focusing
    no
    ▼ 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.
  • 0.16 x lower maximum reproduction ratio
    Maximum reproduction ratio
    0.03 x
    ▼ Worse than 100% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a lower maximum reproduction ratio than the average camera lens (0 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.03 x vs 0.192 x
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    ▼ 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 lens hood
    Lens hood included
    no
    ▼ 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.
  • 35.1 mm wider lens barrel
    Lens diameter
    112.1 mm
    ▼ Worse than 95% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is wider than the average camera lens (112.1 mm vs 77 mm). The average lens has a diameter of 77 mm.
    112.1 mm vs 77 mm
  • Fixed lens hood
    Reversible lens hood
    no
    ▼ Worse than 81% of models
    This camera lens does not include a reversible lens hood, the average camera lens does. 81.4% of camera lenses include a reversible lens hood.

Expert reviews

In-depth analysis and verdict from leading tech publications

T
the-digital-picture.com
13/08/2024
Summary of the review
Canon RF-S 3.9mm F3.5 STM Dual Fisheye Lens Review
C
cined.com
17/07/2024
Summary of the review
Canon Announces Update for RF-S DUAL and RF-S 3.9mm Lens Support
(Translated)Show original

Third-party reviews

What we like about Canon RF-S 3 9mm F 3 5 STM Dual Fisheye

  • Autofocus capabilities (STM motor) allow for easier and faster setup compared to manual-only VR lenses
  • Lightweight and compact design (290g), making it ideal for travel and portable rigs
  • Excellent center sharpness and overall image quality
  • Supports 30.5mm screw-on filters at the rear, a significant improvement for immersive filmmaking
  • More affordable entry into stereoscopic 3D/VR content creation (especially when paired with APS-C cameras like the R7)
  • Narrower 144° field of view helps eliminate unintended elements like tripod legs or edge distortion

What we don't like about Canon RF-S 3 9mm F 3 5 STM Dual Fisheye

  • Lower total resolution compared to the 5.2mm RF lens, which may not meet high-end VR requirements (e.g., Apple Vision Pro)
  • Narrower 144° field of view reduces the overall immersive experience compared to the 190° 5.2mm lens
  • Lacks built-in image stabilization, requiring tripods or gimbals for stable footage
  • Only 4K resolution on APS-C sensors, which can feel limiting for high-resolution VR

Verdict

The Canon RF-S 3.9mm f/3.5 STM Dual Fisheye is an innovative stereoscopic lens designed specifically for APS-C mirrorless cameras like the EOS R7 to simplify 180° VR content creation. It features dual lenses with an interpupillary distance of 60mm and a 144° field of view, projecting two circular images onto a single sensor to eliminate the need for manual stitching. Key technical specifications include a gear-type STM autofocus system—a first for Canon VR lenses—two Ultra-Low Dispersion (UD) elements, and an Air Sphere Coating (ASC) to minimise ghosting and flare. Main pros include its compact, lightweight build (approx. 290g), support for both 30.5mm rear screw-in and gelatin filters, and a more accessible price point compared to full-frame alternatives. However, notable cons include its limited camera compatibility, a narrower field of view than its 5.2mm counterpart, and the lack of continuous autofocus (Servo AF) during movie recording.

Compare Canon RF-S 3 9mm F 3 5 STM Dual Fisheye with other products in the Camera lenses category

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