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Sigma 8mm f/3.5 EX DG circular fisheye

8 mm · f/3.5 · Nikon F AF, Sigma SA

The Sigma 8mm f/3.5 EX DG circular fisheye is a 8 mm prime lens with a maximum aperture of f/3.5 for the Nikon F AF, Sigma SA, Canon EF mounts (equisolid projection). Here are its field of view on different sensors, hyperfocal distances, Milky Way exposure limits and the cameras it fits.

Focal length
8 mm
Max aperture
f/3.5
Mount
Nikon F AF
Designed for
1.52× crop

Field of view by sensor

SensorDiagonal angle of view35 mm equivalent
APS-C (1.5×)121.0°12 mm
Canon APS-C (1.6×)118.8°13 mm
Micro Four Thirds107.0°16 mm

Hyperfocal distance

Focal lengthf/5.6f/8f/11f/16
8 mm0.6 m0.4 m0.3 m0.2 m

Circle of confusion 0.020 mm (sensor size the lens is designed for).

Longest exposure for sharp stars

CameraNPF rule (wide open)500 rule
APS-C (24 MP)29.9 s @ f/3.540.8 s

Cameras that fit (229)

Where to buy

B&H PhotoAmazonKEH (used)MPB (used)

FAQ

What is the Sigma 8mm f/3.5 EX DG circular fisheye equivalent to on APS-C?
It is designed for a 1.52× sensor, giving a full-frame equivalent of 12 mm.
Which cameras is the Sigma 8mm f/3.5 EX DG circular fisheye compatible with?
It fits Nikon D40, Nikon D40X, Nikon D50, Nikon D60, Nikon D70 and more (see the full list above).