Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Sigma’s 4.5mm F2.8 EX DC Circular Fisheye HSM creates an image that is a circular, curved, distorted view of reality when used on a digital SLR camera. One of the most unusual lenses a photographer can use as it produces a circular image within a black surrounding frame. It is ideal for landscapes and panoramic photography. Because of its equisolid angle projection system, the lens can be used for scientific applications. The minimum focusing distance of 5.3 inches allows the photographer to have fun with placement of subjects extremely near to the camera with distorted backgrounds. SLD (Special Low Dispersion) glass employed for effective compensation of color aberration, Super Multi-Layer lens coating reduces flare and ghosting and assures high image quality throughout the entire focal range. In the hands of a photographer looking for creative expression and the opportunity to explore and create, this is the ultimate creative tool. The results are captivating

SPECIFICATIONS

Lens Construction	13 Elements in 9 Groups
Angle of View	180º
Number of Diaphragm Blades	6
Mininum Aperture	f22
Minimum Focusing Distance	13.5 cm / 5.3 in
Filter Size (mm)	Insertion-type gelatin filter into rear of the lens
Maximum Magnifications	1:6
Dimensions (Diameter x Length)	76.2 x 77.8 mm/3.0 x 3.1 in
Weight	470g / 16.6oz.
Corresponding Mounts	Sigma HSM EX DC Nikon HSM EX DC Canon HSM EX DC Sony/Minolta HSM EX DC
HSM -Hyper-Sonic Motor EX - EX Lens DC - DC for Digital *Nikon Mount: Built in motor lens: compatible with D40, D40x, D60, D3000, D5000   * The appearance, specifications, and the like of the product are subject to change for improvement without notice.

MTF CHART

Chart Guide

LENS CONSTRUCTION