Balko Photo

Lens Construction

11 Elements in 6 Groups
Angle of View 180 degrees
Number of Diaphragm Blades 6 Blades
Minimum Aperture F22
Minimum Focusing Distance 13.5cm/5.3 in.
Maximum Magnification - 1:4.6
Filter Size Rear (Gelatin filter)
Dimensions Diameter - 73.5mm X Length 68.6mm
2.9 in. X 2.7 in.
Weight 400g/14.0 oz
Corresponding AF Mounts: SIGMA, CANON,
NIKON, SONY, PENTAX

BUY at Adorama 

This circular fisheye lens produces circular images with an angle of view of 180° when attached to a full-frame digital SLR or 35mm film SLR camera. It has a fast maximum aperture of F3.5 and a minimum focusing distance of 13.5cm (5.3″). Sigma’s super multi-layer coating and Special Low Dispersion (SLD) glass provide excellent image quality for digital and film SLR cameras. The special fisheye design allows maximum creative expression.

Note: Full circle can only be captured with full frame 35mm format digital SLR and film SLR cameras.

Auto-focus system -This circular fisheye lens produces circular images with an angle of view of 180°and also incorporates an auto focus system to achieve accurate focusing that might be difficult through the camera`s viewfinder due to the extremely large depth of field.

3.5 maximum aperture - This lens is perfectly suited for low light conditions indoors or at dusk.

Close-up Photography - This circular fisheye lens has a minimum focusing distance of 13.5cm (5.3″) and a maximum magnification of 1:4.6 making it particularly useful for close-up photography.

xcellent optical performance - Special Low Dispersion (SLD) glass offer effective compensation of color aberration.

Reduction of flare and ghosting - Sigma’s super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras and also creates an optimum color balance.

An updated version of Sigma’s 8mm f/4 spherical fisheye, this is the field’s widest circular fisheye with autofocus. It’s also among the last Sigma film-era lenses to be upgraded with coatings that suppress reflections from digital sensors (”DG”). It captures a 180-degree field of view, with exaggerated perspective and dramatic linear distortion, especially along the frame edges. For full-circle images, you need a full-frame film or digital SLR; APS-scaled sensors crop into the top and bottom of the frame when the camera is oriented horizontally. [Pop Photo]