User talk:Ever scopeful

Ever scopeful (talk) 01:12, 11 June 2013 (UTC) Seeking information on a Leitz Wetzlar F3.5 800mm lens, a Cooke Triplet or more, which I understand was made to project light, perhaps in a theatre or cinema context.

It has a lens diameter of 235mm and a focal length of 800mm, and measures approx. 400mm long. Ever scopeful (talk) 01:15, 11 June 2013 (UTC)