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I'd take the IIIg, as a placeholder until I get the one I really want, the M-mount prototype that Lars Netopil had back in 2012. Interesting that they both have wind-on knob film reminders like a IIIf, rather than the M3-style disc on the back they went with for the production cameras.

Meanwhile, I should get the prototype M-mount Summitar from this auction so I'll have a lens for it. Needs a CLA, though.

Edited by Anbaric
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10 hours ago, Anbaric said:

I'd take the IIIg, as a placeholder until I get the one I really want, the M-mount prototype that Lars Netopil had back in 2012. Interesting that they both have wind-on knob film reminders like a IIIf, rather than the M3-style disc on the back they went with for the production cameras.

 

That was a feature of the f cameras, of course.

3 hours ago, wlaidlaw said:

I think DAG made a couple of copies of the M Mount IIIg. Not easy as the M Mount has to be recessed into the body of the IIIg. 

Wilson

The M distance from flange to film is 1mm less than LTM to allow the use of existing screw mount lenses on M cameras via an adapter. There was a ‘method to the madness’ in this case.

William 

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I've seen one or more conversions done by DAG's father Norman advertised, like this, which is very nicely done but has been reduced to a IIg (perhaps the position of the slow speed dial complicated things) and, being based on a production IIIg, lacks the wind-on knob reminder and internal frame counter that the M-mount prototype has (the LTM prototype in the current auction also has an internal frame counter, in a different style). An ebay listing quoted here mentions that Norman Goldberg did '5 or 6' of these conversions after seeing the prototype at Weltzlar. An old post in this thread on photo.net claims DAG himself did one, but 'swore he would never do it again' due to the complexity.

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I read an article some years ago by Norman describing his work in making these. He actually started with a IIIg for at least one of his M mount conversions, the IIg being a pretty rare animal but had to remove the slow speed mechanism to allow for the lens mount's recess and he made up a small plate to cover the hole in the front body. I am not sure that it is not written up in his book "The Dark Side of the Lens but my copy of this is back in the UK. 

Wilson

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The 30s III prototype does indeed look intriguing. It seems to have a few M-type features.

My late Leica friend, George, who was in the USAF would have found the Air Force M2 interesting.

A good selection; will be good to see how the auction goes.

Edited by NZDavid
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