Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Announced Nov 14, 2007 •
Wideangle fisheye prime lens | Canon EF, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha
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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.

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Quick specs
Lens type Prime lens
Focal length 5 mm
Image stab. No
Lens mount Canon EF, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha
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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