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Author Message   Jose Lopez Rating: N/A Votes: 0 Posted on Monday, June 21, 2004 - 06:01 pm:    Hi, I want to clean two lenses: a Nikkor auto Q 200mm f4 and a Nikkor H auto 50mm f2 but I can't reach the front and middle elements. I removed the rear element and mount in both lenses but I can't continue, I don't know how to disassemble the part screwed onto the helical thread. I have uploaded a picture of the lenses, please take a look at : www.laguacamaya.co.cr/lens.jpg Please, does somebody know how to reach the front and middle elements ? Thanks in advance for any clue. Jose.