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Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye Lens
For Sigma S Mount

Fixed focal-length. No zoom.Fixed focal-length. No zoom.Fisheye Lens. Shows straight lines as curves.Fisheye Lens. Shows straight lines as curves.No thread to mount front filters.No thread to mount front filters.Autofocus LensAutofocus Lens

Lens Description

The Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye is an ultra-wide prime designed for cameras with a APS-C (1.5X) sensor. This bright prime has a 4.5mm focal-length. It provides the same field of view as a 6.75mm lens on a Full-Frame camera.

This prime can focus down to 13.5cm from the imaging plane which gives it a maximum magnification of 0.16X. The lens supports autofocus and features a switch to disengage AF for focusing manually. A Super-Sonic motor inside the lens delivers very fast and relatively quiet AF.

This version has a Sigma S lens mount. Follow this link for all current compatible digital cameras: Sigma S mount cameras. Sigma also made this lens available for Canon EF, Nikon F, Pentax K, Sony A mounts.

Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye Specifications

Brand Sigma Model 4.5mm F2.8 EX DC HSM Circular Fisheye
Mount Max FLM 1.5X
Focal Length 4.5mm View Angle 180°
Max ApertureF/2.8Min ApertureF/22
Min Focus13.5cmMagnification0.16X
Filter Size Aperture Blades6
Size (D x L)76 x 78mm Weight470g
TiltN / A ShiftN / A
Stabilization ProtectionNone
Zoom Drive N / A Focus Drive AF with MF Switch
Zoom Mechanism N / A Focus Mechanism Internal
Hood No Focus Motor Super Sonic
Perspective Circular FisheyeIntroduced
Features

Accepts gel filters.

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Sigma 4.5mm F/2.8 Facts


Fixed focal-length. No zoom.Fixed focal-length. No zoom.Fisheye Lens. Shows straight lines as curves.Fisheye Lens. Shows straight lines as curves.No thread to mount front filters.No thread to mount front filters.Autofocus LensAutofocus Lens
4.5mm Focal-Length F/2.8 Constant Aperture
No filter thread AF with MF Switch
Sigma S Mount 1.5 Max Crop-Factor
470g Lens Weight 76 x 78mm (D x L)
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