> (Note: the only digital that can handle a D-mount
is the Pentax-Q.  It
> claims to be the smallest interchangeable lens digital - I need to get
> a letter writing campaign going to convince Minox to redo their
> Minox-Leica as a screw-mount using C or D mount!) 
On Thu, 10 Mar 2016, Zane Healy wrote:
  Okay, you?ve actually lost me on these.  What is a
D-mount? 
C-Mount is the standard mount for 16mm movie, and then for TV cameras.
D-mount is the standard mount for 8mm movie.  About half the size as C.
The Minox-Leica M3 is a tiny pocket digital that only resembles the
appearance of a Leica M3.  But, if they were to make a digital IIIf, they
could have a functioning screw-mount, with interchangebale lenses.  And
take back their bragging rights from Pentax.
BTW, Leitz made a C-mount 25mm lens version of the "Hektor-Rapid"
"Super-8" hardly ever supported any interchangeable lenses.
Well, one of the models of Leicina used Leica M-mount!  There was a lens
made for that camera; when used on a regular M, it only covers a tiny spot
of the frame.