Sigma 8mm F4

2003年 Sigma Fisheye 8mm F4 EX

180 degrees Solidangle Projection, Circular Image, 10 Elements in 6 Groups

2005年 Sigma Fisheye 8mm F4 EX DG

180 degrees Solidangle Projection, Circular Image, 10 Elements in 6 Groups

2006年 Sigma Fisheye 8mm F3.5 EX DG

180 degrees Solidangle Projection, Circular Image, 11 Elements in 6 Groups