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Jalpuerto
Tinkerer
Username: Jalpuerto
Post Number: 1
Registered: 02-2013
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 04, 2013 - 01:10 pm: | 
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I recently received a 50mm Elmar as shown below from Adorama's Used sale department.
http://www.kenrockwell.com/leica/images/50mm-f28/D3S_8116-rear.jpg
http://www.kenrockwell.com/leica/images/50mm-f28/D3S_8115-460.jpg
Asthetically the lens is a 8/10. The glass is clear and only has a speck of dust. However, the focusing mechanism is smooth, but stiff (takes a lot to move with one finger). I've worked on Nikkor MF and Minolta MF lenses before, but I'm not too sure how to disassemble this Leica lens and access the focusing helicoid by going through the back (if possible). Can anyone help me? Thanks in advance. |
John_shriver
Tinkerer
Username: John_shriver
Post Number: 97
Registered: 12-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 08, 2013 - 08:15 pm: |
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Never done it, but I suspect you have to take the rear collar off the collapsible tube so you can remove the lens tube from the focusing mount. There's a risk of messing up the felt inside the focusing mount when removing and replacing the tube, try not to! Then you obviously have to remove those two screws on the front of the focusing mount. Look at how there are slide rails to keep the inner threaded helical (and the lens tube) from rotating. The inner helical goes in an out, but doesn't rotate. The outer helical is held into the mount with a retaining ring of some sort, rotates, but doesn't go in and out. |
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