[Leica] Summicron DR Eyes

[maurice at mckay3d.com (Maurice M. Greeson)]

My D/R Summicron, #2117016 has the dual scale, ridges in the trough, and a 
ball bearing size of 3mm x 1.2mm.  I have two sets of eyes with the newer 
Leitz Wetzlar logo.  One has a receptor size of 3.5mm x  1.4mm, and the 
other is 3mm wide x 1.2mm.   So, I guess I'll use the eyes with the larger 
receptor.  Thank You Chris.
 P.S..... Whoops!  When I tried that the lens wouldn't focus so I guess the 
larger, deeper receptor just won't push the ball bearing down far enough to 
let the lens focus in the close-up mode.   And,  I think my measurements of 
the depth of the holes might need to be done again..... 

  Maurice

On Jan 16, 2012, at 4:25 PM, Chris Saganich wrote:
> I noticed that according to Steve Gandy's lens guide the eyes of my DR
> shouldn't be compatible with the lens body.  The newer DR lenses have a
> dual scale in feet and meters, focus to 20in, and have ridges in the trough
> of the focus ring knurling.  The older DR bodies have a single scale, focus
> to 19in, have reproduction ratios, and have ridges on the peaks of the
> focus ring knurling.  The older bodies are supposed to have a larger ball
> bearing compared to the newer DR bodies making the newer eyes incompatible
> to the older DR bodies, but the older eyes will work on the newer DR
> bodies.  Older eyes have the "condenser" logo and newer eyes have the Leitz
> Wetzlar logo.  According to convention ( which I haven't confirmed) the
> newer eyes shouldn't be compatable on the older DR bodies due to the ball
> bearing size difference.  My DR has the new logo and the older body so I
> was curious if I could find any other examples of this anomaly.  I searched
> ebay and the internet for examples where the age of the lens and logo of
> eyes were identifiable.  Here is what I found:
> 
> 1956- 125,594 lenses made
> 1402xxx Old Body Old Logo
> 1403731 Old Body Old Logo
> 1440268 Old Body New Logo
> 
> 1957- 89,389 lenses made
> 1487412 Old Body New Logo
> 1513415 Old Body New Logo
> 15301xx Old Body New Logo
> 1534320 Old Body New Logo
> 1545576 Old Body New Logo
> 
> 1958 -97,281 lenses made
> 1587819 Old Body Old Logo -From Cameraquest website
> 1592570 Old Body New Logo - My Lens
> 1623068 New Body New Logo
> 
> 
> The only exception is from Cameraquest where Steve probably used an old
> example of the eyes for the old body. Who but Steve would have lots of
> these hanging around?
> 
> All this suggests that eyes with the newer logo were manufactured with the
> larger ball bearing receptor for the older DR bodies.
> 
> The ball bearing size on my older DR body is 3 mm diameter and 1.8mm
> height. The receptor dimensions on my eyes with newer logo are 3.5 mm
> diameter  and 1 mm deep.
> 
> It would be interesting if we could fill in these blanks regarding ball
> bearing measurements on the older and newer DR bodies and eyes:
> 
> 1)  Older DR body: 3mm dia x 1.8mm height
> 2)  Eyes with older Logo: ???
> 3)  Eyes with new Logo on older body: 3.5mm dia x 1mm depth
> 4)  Newer DR body: ???
> 5)  Eyes with new Logo on New DR body:  ???
> 
> The supposition is that the dimensions of1,  2 and 3 should be similar
> while 4 and 5 should be different and smaller.
> 
> -- 
> Chris Saganich
> www.imagebrooklyn.com
> 
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Maurice M. Greeson
867 West 2400 South
Syracuse, UT 84075

801-776-5712