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Thread: lens polishing

  1. #1

    Join Date
    Jan 1999
    Posts
    153

    lens polishing

    Sorry, but this sort of question comes up every now and then. I just went throu gh all of the old threads and couldn't find one on lens polishing and coating. I would swear that I read one not long ago about a guy who had a Voigtlander Apo Lanthar 150mm/4.5 polished and coated, and I have the same lens and it is despa rately in need. I got the e-mail of a guy in Colorado who does this and I e-mai led him and he answered me, but in switching to a new computer recently I lost i t all. Anyone know what I am talking about? He gave me his address, phone, etc . and I can't find anything or recall the city.

  2. #2

    Join Date
    Sep 1998
    Location
    Loganville , GA
    Posts
    14,409

    lens polishing

    Polishing actually means that the old coating is ground off. This changes the specifications of the elements.

    After polishing the lens will never perform as it did new.

  3. #3
    Photo Dilettante Donald Brewster's Avatar
    Join Date
    Feb 2000
    Location
    Malibu, CA
    Posts
    359

    lens polishing

    I'm guessing you were correspoding with John van Stelten in Louisville, Colorado: focalpt@ecentral.com

  4. #4

    Join Date
    Mar 2000
    Posts
    63

    lens polishing

    I think you read this:I recently had my APO Lanthar 150 recoated and though it was only a single coating it solved the problem of severe cleaning marks sustained from the previous owner. I used John van Stelten and am very happy with his work. The cost was $225 + shipping. I am not sure if he does any multi coating. His address is:

    Focal Point Inc. 1017 South Boulder Road Suite E-2 Louisville, Co. 80027 Phone 303-665-6640 Fax 303-665-3803 E-mail: focalpt@ecentral.com

    -- Ray Fenio (rfenio@indiana.edu), March 16, 2000.

  5. #5

    Join Date
    Jan 1999
    Posts
    153

    lens polishing

    Thanks Tom. That is the one. I couldn't find it. And thanks Bob. I guess I remembered it wrong because polishing is not mentioned. I guess a recoating would do it. I have been told that 1/2 of 1% of the lenses that are recoated crack or shatter in the heat process. Pretty good odds I guess, but when you are the 1/2...?

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