Hi all, got the 14mm f2.8 Samyang lens today and had to give it a try out. This is 1x30second exposure with 5D MK II at ISO 3200 on tripod. I tried a few exposures at f4 and f5.6, but the star images looked the same in all, just fainter as the lens was stopped down. So very happy with the results for such a cheap lens. Should come in handy for the northern lights next year in Finland.
http://i638.photobucket.com/albums/u...s/a648f79d.jpg