N°110292 · Family detail
SigmaFisheye·PRAKTICA B mount
Sigma MF 8mm F/4 Fisheye
Specifications01
Summary02
Sigma 8mm f/4 fisheye prime lens for the Praktica B mount. Fixed focal length with a fisheye field of view, intended for ultra-wide creative effects and close, expansive scenes.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Praktica B mount has a flange distance of 44.4 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Sony EAdapter · 26.4 mm
- Canon RFAdapter · 24.4 mm
- Nikon ZAdapter · 28.4 mm
- Fujifilm XAdapter · 26.7 mm
- L-MountAdapter · 24.4 mm
- Micro Four ThirdsAdapter · 25.15 mm
- Fujifilm G (GFX)Adapter · 17.7 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 26.4 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.

Other Mounts03
This lens family is also indexed in 11 other mounts.
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NIKON FView lens
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OLYMPUS OMView lens
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PENTAX KView lens
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ROLLEI QBMView lens
Sigma MF 8mm F/4 Fisheye