Summicron 35 2 ver.4 disassembly
Old 06-16-2017   #1
mirnuj_atom
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Summicron 35 2 ver.4 disassembly

Hello, everyone!

Recently I purchased late German ver4 summicron 35 2 in really nice condition overall except for one small issue, looks like it's aperture ring needs cleaning, it becomes sticky, especially if I do not use it for a few days then it is difficult to move for the first time so I have to make effort to budge it. Not a big deal for now but I'm afraid that with time it may cause more serious problems since the 4th one is known as not the sturdiest from 35mm summicrons.
So I was thinking about cleaning the ring out.
I was searching for disassembly instructions and found several great videos on youtube from a user called mikeno62. Unfortunately, there are videos for ver2 and asph summicrons and the 4th gen looks different since it does not have that ring which holds other crons together. It's back part looks exactly as the one on summilux 35 pre-asph in another mikeno62's video, but I afraid to break the lens without exact instructions.

Does anyone have information about how to disassemble the 4th summicron? I'm not planning to go deep inside, just take off the focusing mechanism and take a look on what may cause issues with the aperture ring.

PS: Sorry for my poor English
Thanks.
Andrii.
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Old 06-16-2017   #2
ferider
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Your English is just fine. Have a look here:

https://sites.google.com/site/kamera...-35mm-pre-asph

and here

https://www.photo.net/discuss/thread...-bokeh.432072/

Good luck,

Roland.
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Old 06-16-2017   #3
mirnuj_atom
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Quote:
Originally Posted by ferider View Post
Your English is just fine. Have a look here:

https://sites.google.com/site/kamera...-35mm-pre-asph

and here

https://www.photo.net/discuss/thread...-bokeh.432072/

Good luck,

Roland.


Thanks, Roland!

But both the articles are missing the information I need, i.e how to begin disassembly, I see the parts apart but still can't figure out how to remove the focusing part from the lens.
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Old 06-18-2017   #4
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Quote:
Originally Posted by mirnuj_atom View Post
Thanks, Roland!

But both the articles are missing the information I need, i.e how to begin disassembly, I see the parts apart but still can't figure out how to remove the focusing part from the lens.
It just unscrews - but hold the front where the hood attaches and the mount at the back. Don't hold the aperture ring or the focus ring.
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Old 4 Weeks Ago   #5
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Quote:
Originally Posted by michaelwj View Post
It just unscrews - but hold the front where the hood attaches and the mount at the back. Don't hold the aperture ring or the focus ring.

Thanks a lot, Michael!
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Old 4 Weeks Ago   #6
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Originally Posted by mirnuj_atom View Post
Thanks a lot, Michael!
Don't thank me till it's undone
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Old 3 Weeks Ago   #7
mirnuj_atom
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Quote:
Originally Posted by michaelwj View Post
Don't thank me till it's undone
Well, it behaves much better when the square hood is not mounted, so maybe I'll wait with repair attempts
Last three times I tried to fix my Leicas ended up with sending them to Youxin...
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