Canon RF-S7.8mm F4 STM Dual 7mm
A stereoscopic dual-lens design captures spatial video for Apple Vision Pro and Meta Quest 3, using an STM autofocus motor and a 60° field of view on APS-C bodies like the EOS R7. Its compact 130g build and f/4 constant aperture make it an accessible entry point into the Canon EOS VR System without heavy rigs. This lens is best for content creators experimenting with 3D vlogging and immersive video, not for traditional landscape or macro work.
Focal length 8mm
Aperture f/16
Mount Canon RF
Weight 130 g
af type STM
lens type fisheye
54 Overall Score
Price ¥0
Snapshot
What owners think
How owner sentiment changed over time
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Owner sentiment has held steady over time
Based on 2 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Fisheye |
| Focal Length Min | 8 |
| Focal Length Max | 8 |
| Elements | 9 |
| Groups | 7 |
| ED Elements | 2 |
| Coating | Super Spectra Coating |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/4 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Canon RF |
| Format | APS-C |
| Weather Sealed | No |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 58 |
AF & Stabilization
| AF Type | STM |
| Stabilization | No |
Focus
| Min Focus Distance | 150 |
| Max Magnification | 1:14 |
vs Competition
| Spec | Canon RF-S7.8mm F4 STM Dual 7mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 8mm | 16-300mm | 17-70mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/16 | f/3.5 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Canon RF | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | true | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 130 | 615 | 544 | 450 | 306 | 326 |
| AF Type | STM | HLA | RXD | Stepping Motor | Autofocus | Linear motor |
| Lens Type | fisheye | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon RF-S7.8mm F4 STM Dual 7mm | 86.8 | 27.4 | 93.6 | 89.1 | 58.9 | 39.3 | 33.7 | 8 | 36.8 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 53.8 | 84.5 | 64.2 | 87.4 | 99.2 | 76.6 | 99.6 | 81.9 | 99.2 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.8 | 86.4 | 69.1 | 85.5 | 91.2 | 83.3 | 89.6 | 86.1 | 82.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.8 | 86.4 | 75.6 | 85.5 | 88.3 | 83.3 | 68.1 | 71 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.8 | 81.1 | 85.7 | 50.7 | 86.6 | 83.3 | 80.6 | 86.1 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 74.6 | 73 | 40.3 | 78.7 | 76.6 | 95.8 | 90.2 | 82.4 |
Price
Value & Pricing
We started tracking prices for this product on May 26, 2026. The chart appears once we have more data.
