Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Announced Nov 14, 2007 •
Wideangle fisheye prime lens | Canon EF, Sigma SA, Nikon F (DX)
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Product description
Announced Nov 14, 2007

The 4.5mm F2.8 EX DC Circular Fisheye HSM is a true fisheye optic for crop cameras, projecting a circular 180-degree image onto APS-C sensors. This lens sports a focal length of 4.5mm and maximum aperture of F2.8, Sigma's HSM ultrasonic-type focusing and SLD low-dispersion lens elements. Aside from 'edgy' skateboarding shots, circular fisheyes are actually quite useful for astrophotography and scientific applications.

Product timeline
News story, Nov 14, 2007
Quick specs
Lens type Prime lens
Focal length 5 mm
Image stab. No
Lens mount Canon EF, Sigma SA, Nikon F (DX)
Max aperture F2.8
Min aperture F22.0
Min focus 0.14 m (5.31)
Weight 470 g (1.04 lb)
Length 78 mm (3.06)

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