Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
Canon
47 Overall Score
vs
Sigma Contemporary 16-300mm F3.5-6.7 DC OS
Sigma
91 Overall Score
What Buyers Say
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
45 out of 100 medium confidence 11 reviews
The Canon RF-S 3.9mm f/3.5 STM Dual Fisheye Lens receives mixed feedback. One verified user reports a critical autofocus bug that requires a camera reset to fix, and incompatibility with Canon VR Utility for equirectangular conversion. Another verified owner finds it a good, affordable, lightweight alternative to the Canon R5 setup with autofocus. A third unverified user praises it for VR video, calling it a 10/10 purchase for wedding videography.
Pros
- Affordable alternative to R5 setup
- Lightweight design
- Autofocus capability
- Great for VR video
- Good for wedding videography
Cons
- Frequent autofocus loss requiring camera reset
- Incompatible with Canon VR Utility
- Limited compatibility (only R7 confirmed)
- No screw-on ND filter options
- Autofocus only on left lens subject
Autofocus reliability 3
Compatibility 3
Value for money 2
Vr video quality 2
Build quality 1
Filter options 2
Sigma Contemporary 16-300mm F3.5-6.7 DC OS
No customer feedback yet
Scores
Landscape
Budget
Portrait
Macro
Professional
Video Cinema
Travel
Street
Wildlife Sports
Specifications
| Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm | Sigma Contemporary 16-300mm F3.5-6.7 DC OS | |
|---|---|---|
| Optics | ||
| Type | fisheye | zoom |
| Focal Length Min | 4 mm | 16 mm |
| Focal Length Max | 4 mm | 300 mm |
| Elements | 11 | 20 |
| Groups | 8 | 14 |
| Aspherical Elements | — | 4★ |
| ED Elements | 2 | 5★ |
| Coating | Air Sphere Coating | water and oil repellent coating |
| Aperture | ||
| Max Aperture | f/16 | f/3.5 |
| Min Aperture | f/3.5 | 3.5-6.7 |
| Constant | ✗ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.29 kg★ | 0.61 kg |
| Filter Thread | 31 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HLA |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 6 stops★ |
| Focus | ||
| Min Focus Distance | 201 mm★ | 300 mm |
| Max Magnification | 1:33.33 | 1:2 |
Pros & Cons
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
- Strong af (85th percentile)85th %ile
- Strong macro (81st percentile)81st %ile
- Strong build (76th percentile)
- Below average user sentiment (2nd percentile)2nd %ile
- Below average social proof (26th percentile)
- Below average bokeh (30th percentile)
- Below average versatility (34th percentile)
Sigma Contemporary 16-300mm F3.5-6.7 DC OS
- Strong versatility (100th percentile)100th %ile
- Strong optical (99th percentile)99th %ile
- Strong stabilization (99th percentile)99th %ile
- Strong bokeh (87th percentile)87th %ile
Pricing
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm0.038score per dollar
vs
Sigma Contemporary 16-300mm F3.5-6.7 DC OS0.152score per dollar
Sigma Contemporary 16-300mm F3.5-6.7 DC OS offers 4.0x better value for money
Verdict
Winner: Sigma Contemporary 16-300mm F3.5-6.7 DC OS
Scores 91 overall, wins 9 of 9 usage categories and 6 of 22 specs.
