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Message |
    
Aaron
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 27, 2004 - 05:31 am: | 
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Help!
I have removed the silver screw on the silver retaining ring of my 50/1.4 FL lens, hoping to remove the rear element to clean. However the silver ring cannot be removed. Now I cannot put the screw back, for there is something which springs into the path of the screw and blocks it. How can I put it back again? Thanks |
Jim Bielecki
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, March 06, 2004 - 01:19 pm: |
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The silver breech lock ring unscrews in the opposite direction from normal (turn the ring clockwise with the back of the lens facing you). Mine unscrewed in two full turns. There's nothing back there to obstruct the attachment screw so I'm guessing that you don't have the ring back fully to its rest position. Try again and let us know what happened. |
Aaron
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 08, 2004 - 07:23 pm: |
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Thanks Jim for the help. Yes I didn't have the ring back fully to its rest position. Now I have put back the screw. By the way how can I tear down this lens properly? |
Jim Bielecki
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, March 10, 2004 - 06:52 pm: |
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First off, it depends on which FL 50mm F1.4 you're talking about. Canon redesigned this lens in 1968 so disassembly will differ depending on the variety you're talking about. Check the Canon Museum website for more info.
For the second 50mm F1.4 variety, You should be able to remove the front lens group fairly easy. Use a drain stopper or something similar to remove the front trim ring, then use the appropriate lens spanner to remove the front group. This should give you access down to the diaphragm.
I've never removed the rear lens group on one of these lenses so I can't be of much help here. It looks like removing the three screws around the edge of the back plate would give pretty easy access to the rear lens group which probably unscrews.
Hope this helps. |
Aaron
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 12, 2004 - 01:36 am: |
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Thanks Jim for the advice. I'll give it a try. |
