CoastalOpt 4.88mm F5.2 Circular Fisheye Specifications
APS-C limited (dumb mount - aperture priority or manual modes only)
Diagonal Angle of View:
185° (circular fisheye)
Number of Aperture Blades:
Coastal Optical Systems is a subsidiary of Jenoptik. The lens covers an image circle of 14.9mm. Thus it is recommended for crop DSLRs, but still physically compatible to fullframe models as well.