1971年 Canon Fisheye FD 7.5mm F5.6 180 degrees Equidistant Projection, Circular Image, 11 elements in 8 groups 1973年 Canon Fisheye FD 7.5mm F5.6 S.S.C. 180 degrees Equidistant Projection, Circular Image, 11 elements in 8 groups  1979年 Canon New FD Fisheye 7.5mm F5.6 180 degrees Equidistant Projection, Circular Image, 11 elements in 8 groups |
