Pentax DA 10-17mm f3.5-4.5 Fisheye

Manufacturer Description

Designed exclusively for use with Pentax digital SLR’s, this lens places fish-eye (180°diagonal angle of view at a focal length of 10mm) to super wide-angle performance in a single unit. Capture images with an expanded perspective including creative deformation of subjects and sharp pan focus that extends throughout the entire frame.

The image circle in DA-series lenses is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in PENTAX digital SLRs to optimize camera performance.  The new design also contributes to a drastic reduction in size and weight compared to 35mm-format counterparts with similar specifications.