On 2014-11-25 13:32:17 +0000, Sandman said:

In article , Alfred Molon wrote:

I was browsing photozone.de and couldn't find any full-frame
rectilinear 12mm lens. The widest was 14mm. Why is that the case?

In the APS-C world there is the Sigma 8-16, which has an equivalent
FF focal length of 12mm. A bit strange that for APS-C there are
wider rectilinear lenses than for FF. -- Alfred Molon

Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/
photo sharing site

Well, you've got the Nikkor 13mm f/5.6

If you find one, prepare to pay $10K for one in good shape.

Yes and then try to find a modern camera where the mirror can be locked
into the up position without returning after the exposure. Otherwise,
ker-smash!