N°102853 · Family detail
SigmaFisheye·SIGMA SA mount
Sigma 4.5mm F/2.8 EX DC HSM Circular Fisheye
Specifications01
MountSIGMA SA
Focal length4mm
Max aperturef/2.8
TypeFisheye · Wide · Prime
Weight470 g
Physical length78 mm
Min focus distance14 m
Summary02
Sigma 4.5mm F2.8 circular fisheye lens for SIGMA SA mounts. It’s a manual/AF fisheye prime intended for extreme wide-angle, creative full-frame circular fisheye effects.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Sigma SA mount has a flange distance of 44 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.
- Sigma DC lenses cover APS-C only.
- Sony EAdapter · 26 mm
- Canon RFAdapter · 24 mm
- Nikon ZAdapter · 28 mm
- Fujifilm XAdapter · 26.3 mm
- L-MountAdapter · 24 mm
- Micro Four ThirdsAdapter · 24.75 mm
- Fujifilm G (GFX)Adapter · 17.3 mm
- Canon EF-MAdapter · 26 mm
No plain adapter reaches infinity focus on: Canon EF, Nikon F.
Sources03
dpreview.comVisit ↗
Other Mounts03
No alternate mounts are indexed for this family yet.