Well here are 2 very strange prototype cameras.
The Leica ABCDE looks like a GREAT SLR design from 1970 (albeit with possibly the worst name ever for a camera…lol). Why didn’t they use it? I haven’t the slightest clue. Not much is known about this concept, however it was seen on a Leica Factory Tour in 2009 by DPReview.com (the link to their tour, unfortunately, does not work—however the pictures are found in search).
The Leica S1 (below) from 1996 has to be one of the least useable camera designs ever! I cannot even imagine focusing while holding a gigantic ring—-or maybe it’s genius!? Who knows….all we know is that it seems to have cool digital buttons on the top. The colour is right as well. It may make for a nice steering wheel though.
IEDEI 
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