Error 99 wrote in post #10723257
What's wrong with manual focus? At 8mm, you probably won't need much focus...it's not like you're going to get really artsy DOF photographs.
Multiply 8mm x 1.6x = 12.8mm.
Thats not true, though many people make that assumption. Check out my flickr and look at the photos taken with the Peleng. Those were taken @ f/4 because the difference between wide open and f/4 (1 peg down from wide-open @ f/3.5) is quite noticeable in sharpness and flare handling.
Furthermore, the lens NEEDS to be focused in order to use the aperture to isolate subjects... there is a DOF scale on the lens that tells you what will be in focus at each f-stop. In order to isolate a subject, especially one you wish to distort heavily, you focus @ M (for Macro) and get right up close to them... as close as touching the lens with the nose still works.