Sigma AF 8mm F/4 EX Fisheye
The Sigma AF 8mm F/4 EX Fisheye is a 8mm fisheye lens designed for the PENTAX K mount. Manufactured by an unspecified manufacturer, it offers a maximum aperture of f/4, covering a 8mm focal range. Sigma AF 8mm F/4 EX Fisheye is one of 7 variants in its family on lens-database.com, with sibling versions across mounts including NIKON F DX, CANON EF, CANON EF-S, MINOLTA/SONY A, making cross-mount comparison straightforward for buyers and researchers alike.
This lens record is part of the open public catalog at lens-database.com — a free, continuously updated database indexing 23,885+ photographic and cinematographic lenses with cross-referenced specifications. Data is aggregated from manufacturer datasheets and authoritative public sources, then normalized so lenses across vendors and eras can be compared on common terms. Released under CC BY 4.0, the specifications shown here may be quoted, cited, or reproduced with attribution to lens-database.com.
Last verified 2026-04-27. Source: manufacturer specifications.
- Mount
- PENTAX K
- Focal Length
- 8mm
- Max Aperture
- F/4
- Type
- Fisheye
- Brand
- Unknown
What is the Sigma AF 8mm F/4 EX Fisheye?
The Sigma AF 8mm F/4 EX Fisheye is a 8mm fisheye lens for the PENTAX K mount with a maximum aperture of f/4. Full specifications and source attribution are available at lens-database.com.
What mount does the Sigma AF 8mm F/4 EX Fisheye use?
The Sigma AF 8mm F/4 EX Fisheye uses the PENTAX K mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/pentax-k.
What is the maximum aperture of the Sigma AF 8mm F/4 EX Fisheye?
The Sigma AF 8mm F/4 EX Fisheye has a maximum aperture of f/4, a moderate-aperture design. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.
Where can I find specifications for the Sigma AF 8mm F/4 EX Fisheye?
Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/110262-sigma-af-8mm-f4-ex-fisheye. Data is aggregated from manufacturer sources and updated continuously.
Sigma 8mm f/4 fisheye prime lens for Pentax K-mount, used for ultra-wide creative distortion effects and landscape-style perspectives. Fixed maximum aperture is f/4.
Last verified: 2026-04-27