Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye for Nikon Black

4.5mm F2.8 EX DC HSM Circular Fisheye for Nikon The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras.

This autofocus circular fisheye lens is designed exclusively for digital SLR cameras with an APS-C size image sensor. It produces circular image with digital SLR cameras. The minimum focusing distance of 13.5cm/5.3inch and maximum magnification of 1:6 make it particularly useful for close-up photography. SLD (Special Low Dispersion) glass, Super Multi-Layer Coating and the inner focusing system creates high image quality. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocusing and allows full-time manual focus override.