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Leica M39 screw mount bodies/lenses
Hello,
With all the Leica knowledge on this forum,could anybody answer this question for me.
Why did Leitz increase the number of distance marks on the "war-time" lenses from 13 to 18 distances marks.
Was this a requirement by the German military?.
After the war the distance marks on the lenses seem to return to the original 13 marks.
Both of my 5cm 3.5 Elmar (1941) and the 3.5cm f3.5 Elmar(1941) that I use have 18 distance marks.
Why this war-time change was made is not given in any Leica book that I have read.
 
Hello,
With all the Leica knowledge on this forum,could anybody answer this question for me.
Why did Leitz increase the number of distance marks on the "war-time" lenses from 13 to 18 distances marks.
Was this a requirement by the German military?.
After the war the distance marks on the lenses seem to return to the original 13 marks.
Both of my 5cm 3.5 Elmar (1941) and the 3.5cm f3.5 Elmar(1941) that I use have 18 distance marks.
Why this war-time change was made is not given in any Leica book that I have read.

Very interesting question; I've never noticed this, but it is true. No joking this time.

Could very well have to do something with the military use of the cameras and lenses.

Maybe Jim Lager can shine a light on this.

Erik.
 
Never noticed this, I will check what I have.

I assume this only applies to lenses marked in metres? Yes surely it must do, I cannot see them making lenses marked in feet during the war. Never checked that either...

Good question Pan F!
 
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1930 Ia nickel close focus Elmar. Just arrived from KEH, it was listed as inoperable but it seems to be working except that the 1/20 second is slow. Viewfinder and lens is clear, advance feels a little stiff.

Shawn
 
It is easy to remove the lens (three screws), but be very careful with the threads in the aluminium of the housing. The aluminium is soft.

With the lens removed you can see what the shutter does.

Usually the springs of the shutter are are much too tight. You can control their tension with the small screws that you see when the bottomplate is removed. Use two well fitting screwdrivers. When the curtains "snap" when running they are tight enough. Apply a VERY little bit of oil on the bearings. When you remove the viewfinder, you can oil the top of the shafts too.

Do not damage anything.

When the tension of the curtains is normal, tensioning the shutter goes very smooth.

Erik.
 
Thanks Erik. I did remove the lens but just removed the stop screw and unscrewed the helicoid to see the shutter and also the check the lens.

Might give the shutter tension a try but might just get it CLA'd by YYE. He is close by.

Shawn
 
My first Leica. Hoping to sell it and get a new one. Purchased it on the confirmation of it being a rare item. Figured I'd share some photos of this interesting WW2 camera.


 
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Hi Tim,

I haven't used this lens much but here's one taken on Ultrafine Xtreme 400. I enjoy the ergonomics of the lens- light, compact and quick focusing. I don't typically shoot that wide but I've always been happy with my results so overall it's a great lens for the value and I would recommend it.
 
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