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Scored using Camera lenses Methodology v1.0
Camera lenses Methodology v1.0
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Products in this category are evaluated mathematically under Frontumo Camera lenses Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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Canon RF-S 7 8mm F 4 STM Dual Review | 54 Data compared

Avg. price:~£480Lens mount:Canon RFMaximum focal length:7.8 mmMaximum aperture (telephoto end):4Optical image stabilization:noMaximum angle of view:63 °

Canon RF-S 7 8mm F 4 STM Dual 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.

5.0

Overall score

Score
5.0/ 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 98% of models
Score components

80%

5.0

Technical score

20%

?

User score

â–¼Worse than 98% of camera-lenses
5.0

Technical score

Technical score
5.0/ 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 90% of models
Score components

35%

5.6

Optics & Aperture

24%

4.4

Build & Handling

20%

5.6

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

1.0

Mount & Format

â–¼Worse than 90% 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
â–¼
<55-66-77-88-99-10
â–¼ Worse than 71% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image

Best prices

    N/A~ £480

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 7 8mm F 4 STM Dual

Technical score
Technical score
5.0/ 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 90% of models
Score components:

35%

5.6

Optics & Aperture

24%

4.4

Build & Handling

20%

5.6

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

1.0

Mount & Format

5.0
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
â–¼
<55-66-77-88-99-10
â–¼ 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
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Popularity:
Canon RF-S 7 8mm F 4 STM Dual has a popularity score of 1 point, which is lower than 91.7% of camera lenses.
1.0
Value for money
Value for money
5.9/ 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
â–¼
<55-66-77-88-99-10
â–¼ Worse than 82% of models
Score components:

60%

5.0

Overall score

40%

8.0

Price

5.9
Lens type
prime
Lens mount
Canon RF
Sensor format coverage
APS-C
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.
Show more
Minimum focal length
7.8 mm
Maximum focal length
7.8 mm
Optical zoom
N/A
Maximum angle of view
63 °
Minimum angle of view
63 °
Show more
Focus motor
STM
Minimum focus distance
0.15 m
Minimum focus distance
0.15 m
★ Better than 93% of models
Market range: <0.18 m – >1.1 m
This camera lens 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
0.07xx
Maximum reproduction ratio
0.07x
â–¼ Worse than 99% of models
Market range: <0.11 x – >0.39 x
This camera lens reaches a reproduction ratio of 0.07x, which is lower than 98.9% of camera lenses and equal to 0.5% of camera lenses.
Full-time manual focus
yes
Full-time manual focus
yes
â–² 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
yes
Internal focusing
yes
â–² Better than 16% of models
This camera lens supports internal focusing. 83.6% 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
130 g
Weight
130 g
★ Better than 95% of models
Market range: <171 g – >1.3k g
This camera lens weighs 130 g, which is lighter than 94.7% of camera lenses and equal to the weight of 0.3% of camera lenses.
Lens length
41.5 mm
Lens length
41.5 mm
★ Better than 93% of models
Market range: <46 mm – >189 mm
This camera lens is 41.5 mm long, which is shorter than 93.2% of camera lenses.
Lens diameter
69.2 mm
Lens diameter
69.2 mm
â–² Better than 74% of models
Market range: <62.4 mm – >94.7 mm
This camera lens has a diameter of 69.2 mm, which is slimmer than 74.2% of camera lenses and equal to that of 0.4% 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
?
Show more

Canon RF-S 7 8mm F 4 STM Dual vs the average camera lens

246810TotalMount & FormatOptics & ApertureFocus & ControlsStabilizationBuild & HandlingLab Scores
  • 380 g lighter
    Weight
    130 g
    ★ Better than 95% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (130 g vs 510 g). The average lens weighs 510 g.
    130 g vs 510 g
  • 50.75 mm shorter lens
    Lens length
    41.5 mm
    ★ Better than 93% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (41.5 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    41.5 mm vs 92.25 mm
  • 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.
    2024 vs 2016
  • 0.15 m shorter minimum focus distance
    Minimum focus distance
    0.15 m
    ★ Better than 93% 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.
    0.15 m vs 0.3 m
  • 7.8 mm narrower lens barrel
    Lens diameter
    69.2 mm
    â–² Better than 74% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (69.2 mm vs 77 mm). The average lens has a diameter of 77 mm.
    69.2 mm vs 77 mm
  • 0.15 m shorter minimum focus distance
    Minimum focus distance
    0.15 m
    ★ Better than 93% 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.
    0.15 m vs 0.3 m
  • 380 g lighter
    Weight
    130 g
    ★ Better than 95% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (130 g vs 510 g). The average lens weighs 510 g.
    130 g vs 510 g
  • 50.75 mm shorter lens
    Lens length
    41.5 mm
    ★ Better than 93% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (41.5 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    41.5 mm vs 92.25 mm
  • 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.
    2024 vs 2016
  • 7.8 mm narrower lens barrel
    Lens diameter
    69.2 mm
    â–² Better than 74% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (69.2 mm vs 77 mm). The average lens has a diameter of 77 mm.
    69.2 mm vs 77 mm
  • 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
  • 1.2 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    4
    â–¼ Worse than 66% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/4 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    4 vs 2.8
  • 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
  • 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.
  • Fixed lens hood
    Reversible lens hood
    no
    â–¼ 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.
  • 0.12 x lower maximum reproduction ratio
    Maximum reproduction ratio
    0.07 x
    â–¼ Worse than 99% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a lower maximum reproduction ratio than the average camera lens (0.1 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.07 x vs 0.192 x
  • 7.29x less popular
    Canon RF-S 7 8mm F 4 STM Dual is less popular than the average camera lens (1 vs 7.3).
    1 vs 7.29
  • 16.4% worse value for money
    Canon RF-S 7 8mm F 4 STM Dual has a worse value-for-money score than the average camera lens (5.91 vs 6.9).
    5.91 vs 6.89
  • 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
    â–¼
    â–¼
    <55-66-77-88-99-10
    Canon RF-S 7 8mm F 4 STM Dual
    the average camera lens
    Canon RF-S 7 8mm F 4 STM Dual 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
    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
  • 1.2 higher f-number at telephoto end
    Maximum aperture (telephoto end)
    4
    â–¼ Worse than 66% of models
    Market range: <1.4 – >5.6
    This camera lens has a dimmer maximum telephoto aperture than the average camera lens (f/4 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
    4 vs 2.8
  • 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
  • 0.12 x lower maximum reproduction ratio
    Maximum reproduction ratio
    0.07 x
    â–¼ Worse than 99% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a lower maximum reproduction ratio than the average camera lens (0.1 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.07 x vs 0.192 x
  • 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.
  • Fixed lens hood
    Reversible lens hood
    no
    â–¼ 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
05/02/2025
Summary of the review
Canon RF-S 7.8mm F4 STM Dual LensGo to product viewer dialog for this item. Review
P
provideocoalition.com
23/12/2024
Summary of the review
Review: the Canon RF-S 7.8mm Spatial Lens on the EOS R7
C
cambridgephotographyweek.com
10/05/2026
Summary of the review
Canon RF-S 7.8mm F4 STM DUAL Review – Cambridge Photography Week
I
image-en-relief.org
2024
Summary of the review
New Features: Shooting with the Canon RF-S 7.8mm F4 STM Dual Lens 3D Lens
(Translated)Show original
E
eoszine.nl
30/10/2024
Summary of the review
Press Release | RF-S 7.8mm F4 STM DUAL
(Translated)Show original

Third-party reviews

What we like about Canon RF-S 7 8mm F 4 STM Dual

  • Inexpensive entry-level option for 3D/VR content creation
  • Compact and lightweight design, weighing only 130g
  • Excellent image quality with sharp visuals
  • Standard 58mm front screw thread for filters
  • Straightforward workflow similar to traditional 2D lenses
  • User-friendly STM autofocus that is fast and quiet
  • Natural field of view mirroring human vision

What we don't like about Canon RF-S 7 8mm F 4 STM Dual

  • Niche application primarily limited to spatial video and 3D
  • Limited 3D effect for objects more than two feet away
  • Supports 'One Shot' AF only; not ideal for tracking fast movement
  • Autofocus performance can be poor in low-light conditions
  • Strong peripheral shading (vignetting) when used at f/4
  • Limited initial camera support (primarily for Canon EOS R7)
  • Small interpupillary distance (IPD) results in weaker 3D effects compared to some alternatives

Verdict

The Canon RF-S 7.8mm f/4 STM Dual is a compact stereoscopic lens designed for APS-C cameras like the EOS R7 to capture immersive 3D and spatial video. It features a fixed 7.8mm focal length, a maximum aperture of f/4, an optical design of 9 elements in 7 groups including 2 Ultra-Low Dispersion elements, a 63-degree diagonal field of view, and a gear-type stepping motor for unified autofocus. Weighing just 130 grams with a 58mm front filter thread and a 0.15-metre minimum focusing distance, its main pros include an exceptionally lightweight form factor, sharp optics, hassle-free autofocus tracking, and seamless compatibility with Apple Vision Pro workflows. However, notable cons include its limited f/4 maximum aperture which hinders low-light performance, a fixed focal length lack of zoom, a narrow 3D effect range restricted to close-up subjects under 0.5 metres due to its small 11.8mm interpupillary distance, and the lack of weather sealing.

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