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Brand indexSigmaSigma Lenses

Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Announced Nov 14, 2007 •
Wideangle fisheye prime lens | Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha | 486
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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
Sigma 4.5mm EX DC Circular Fisheye HSM
Nov 14, 2007
Quick specs
Lens type Prime lens
Focal length 5 mm
Image stab. No
Lens mount Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha
Max aperture F2.8
Min aperture F22
Min focus 0.14 m (5.31″)
Weight 470 g (1.04 lb)
Length 78 mm (3.06″)

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