Sigma 8mm F3.5 EX DG Circular Fisheye Lens
The Sigma 8mm f/3.5 is a 8mm f/3.5 lens designed for Canon EF, Nikon F, Sony A, Pentax K, Sigma SA mount cameras. Used copies start from $297.16 on GearFocus, with buyer protection on every purchase.
Sigma 8mm F3.5 EX DG Circular Fisheye Lens
Used Sigma 8mm f/3.5 Listings on GearFocus
Lens Overview — Sigma 8mm f/3.5
Key Features — Sigma 8mm f/3.5
8mm Circular Fisheye: Produces a fully circular image within the frame, creating an immersive 180-degree hemispherical perspective across the entire image circle.
Full-Frame Coverage: Engineered to cover a full-frame sensor, delivering the complete circular fisheye effect on compatible DSLR bodies without vignetting.
f/3.5 Maximum Aperture: Reasonably fast aperture for a circular fisheye prime, allowing use in moderate low-light conditions and giving some flexibility with exposure settings.
Autofocus and Manual Focus: Supports both AF and MF operation, giving photographers the choice between quick automated focusing and deliberate manual control.
Five Mount Options: Available in Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA mounts, making it compatible with a wide range of DSLR systems without adapters.
EX DG Build Quality: Part of Sigma's EX (Excellence) professional line, indicating higher-grade optical construction and finishing compared to standard Sigma offerings.
Lens Specifications — Sigma 8mm f/3.5
| Spec | Detail |
|---|---|
| Use Cases | Astrophotography, Travel, Studio, Creative Effects |
| Lens Type | Fisheye |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 8mm |
| Maximum Aperture | f/3.5 |
| Camera System | DSLR |
| Lens Mount | Canon EF, Nikon F, Sony A, Pentax K, Sigma SA |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Weight | 400g |
Description — Sigma 8mm f/3.5
The Sigma 8mm F3.5 EX DG Circular Fisheye is a prime lens with a focal length of 8mm and a maximum aperture of f/3.5, purpose-built for full-frame DSLR systems. Its circular fisheye character makes it a go-to choice for photographers seeking dramatic, creative perspectives in genres ranging from landscape to architecture and beyond. The lens is offered in five mount options — Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA — giving it exceptional reach across the DSLR ecosystem.
Weighing in at 400g, it is a reasonably portable specialty optic. Both autofocus and manual focus are supported, ensuring adaptability across different shooting scenarios. It carries no image stabilization, so technique and lighting conditions matter when shooting handheld.
There is also no filter thread, meaning traditional screw-on filters are not compatible with this lens.
Pros — Sigma 8mm f/3.5
- ✓Wide mount compatibility across five systems: Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA
- ✓Prime 8mm focal length provides a consistent circular fisheye perspective with no zoom complexity
- ✓Maximum aperture of f/3.5 offers reasonable light-gathering for a circular fisheye prime
Cons — Sigma 8mm f/3.5
- ✗No image stabilization, which can be a challenge in low-light or slow-shutter situations
- ✗No filter thread, so standard screw-on filters cannot be attached
- ✗Fixed 8mm focal length offers no zoom flexibility, limiting versatility beyond the fisheye effect
Videos — Sigma 8mm f/3.5
Sigma 8mm f/3.5 Circular Fisheye EX DG For Canon — Damian Brown