15mm · f/2.8
The Yashica ML 15mm f/2.8 is a fisheye lens offering a 170° field of view on full frame. It is described as an excellent performer and 'the poor man's Distagon'. Optical strengths include good performance, but it produces uncorrected fisheye distortion. Build and handling are not detailed. It suits budget-conscious photographers wanting an ultra-wide fisheye for full-frame or APS-C cameras, though specific weaknesses are not noted in the excerpts.