Rokinon HD 8mm f/3.5 HD Fisheye 8mm
Sigma Contemporary 10-18mm f/2.8 DC DN
What Buyers Say
Rokinon HD 8mm f/3.5 HD Fisheye 8mm
This Rokinon 8mm f/3.5 fisheye lens is praised for its excellent value, solid build, and creative potential, especially on APS-C cameras where it delivers a full-frame diagonal fisheye effect. Users love the fun perspective it adds to landscapes, portraits, and skateboarding or astro shots, though they note it requires manual focus and aperture control. Some edge softness and chromatic aberration are mentioned, but these are correctable in post. Issues with full-frame cameras (heavy vignette) and inconsistent compatibility with certain Nikon bodies (e.g., D3500) are recurring drawbacks, and a few users reported a broken focusing ring or cheap-feeling barrel.
Pros
- Great value for money
- Solid build quality
- Fun and creative perspective
- Sharp when stopped down (f/5.6-f/8)
- Lightweight and compact
Cons
- Manual focus only
- Soft edges wide open
- Chromatic aberration at edges
- Not ideal for full-frame cameras (heavy vignette)
- Incompatible with some Nikon bodies (e.g., D3500)
Sigma Contemporary 10-18mm f/2.8 DC DN
The Sigma 10-18mm f/2.8 DC DN Contemporary lens is highly praised for its compact, lightweight design and sharp image quality, making it an excellent choice for travel and real estate photography on APS-C cameras. Users appreciate the fast f/2.8 aperture for low-light performance and pleasing background blur, though some note the lack of in-lens stabilization and the need for post-production correction of distortion and vignetting on certain camera systems.
Pros
- Compact and lightweight design
- Sharp image quality across frame
- Fast f/2.8 constant aperture
- Excellent for travel and landscapes
- Good low-light performance
Cons
- No in-lens image stabilization
- Distortion and vignetting need post-production correction
- Lacks aperture ring on some versions
- No USB dock for firmware updates
- In-camera focus stacking not supported on Canon R7
Scores
Specifications
| Rokinon HD 8mm f/3.5 HD Fisheye 8mm | Sigma Contemporary 10-18mm f/2.8 DC DN | |
|---|---|---|
| Optics | ||
| Type | fisheye | zoom |
| Focal Length Min | 8 mm | 10 mm |
| Focal Length Max | 8 mm | 18 mm |
| Elements | 10 | 13 |
| Groups | 7 | 10 |
| Aspherical Elements | 1 | 1 |
| ED Elements | — | 4★ |
| Coating | super multi-layer coating | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/22 | f/2.8 |
| Min Aperture | f/3.5 | f/2.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 6 | 7★ |
| Build | ||
| Mount | Canon EF | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.43 kg | 0.26 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 305 mm | 117 mm★ |
| Max Magnification | — | 1:4★ |
Pros & Cons
Rokinon HD 8mm f/3.5 HD Fisheye 8mm
- Strong social proof (77th percentile)
- Strong macro (67th percentile)
- Below average bokeh (6th percentile)6th %ile
- Below average af (15th percentile)15th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
Sigma Contemporary 10-18mm f/2.8 DC DN
- Strong social proof (94th percentile)94th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (88th percentile)88th %ile
- Strong build (87th percentile)87th %ile
- Below average stabilization (35th percentile)
Pricing
Rokinon HD 8mm f/3.5 HD Fisheye 8mm offers 2.3x better value for money
Verdict
Scores 94 overall, wins 9 of 9 usage categories and 7 of 21 specs.
