Results 1 to 7 of 7

Thread: Help with weird spots on front element

  1. #1

    Join Date
    Oct 2009
    Location
    Sofia, Bulgaria
    Posts
    19

    Help with weird spots on front element

    Hi guys,
    I recently bought a lens and it has some strange spots and scratches on the front element. It seems like some problem with the coating. Is it fungus or something else?
    On the picture it seems a lot worse than it is.
    Can anyone tell me what it is? Is there a way to fix it? Is it a problem (a have taken a few pictures with it and it seems fine)?
    Thank you.

  2. #2

    Re: Help with weird spots on front element

    It looks like the coating has been badly "cleaned" away. The front element can probably be polished and recoated. It doesn't look like fungus. If you can feel the scratches, then they are deeper than the coating.

  3. #3
    Pastafarian supremo Rick A's Avatar
    Join Date
    Feb 2010
    Location
    north central Pa., USA
    Posts
    555

    Re: Help with weird spots on front element

    Sheesh--looks like someone tried to clean the front element with a brillo pad.
    Rick Allen

    Argentum Aevum

    practicing Pastafarian

  4. #4

    Join Date
    Oct 2009
    Location
    Sofia, Bulgaria
    Posts
    19

    Re: Help with weird spots on front element

    You cannot feel the scratches. The picture looks real bad but when you hold it is almost hard to notice the spots/scratches. The patern does not seem to be hand made (by bad cleaning). It is a combination of netlike scratches and round spots.
    Do you think I can/should try to remove the coating with a soft abrasive?
    How bad do you think this affects the value of the lens?
    I will only use it for black and white.

  5. #5

    Join Date
    Apr 2009
    Posts
    257

    Re: Help with weird spots on front element

    Looks like someone wanted to soften lens ....

  6. #6

    Join Date
    Jan 2009
    Location
    Denmark
    Posts
    5,834

    Re: Help with weird spots on front element

    Looks like typical fungus attach in the coating. I have seen similar patterns on some mamiya TLR lenses that were badly stored (dark and damp) by a previous owner. Fungus thrives on coated lenses and etches the glass underneath. Unless the lens is very special, professional polishing and recoating will not be worthwhile. This is not a job for brave amateurs, like me!

  7. #7

    Join Date
    Jun 2005
    Posts
    2,480

    Re: Help with weird spots on front element

    Quote Originally Posted by Steven Tribe View Post
    Looks like typical fungus attach in the coating.
    ...
    Absolutely right. If you can unscrew the element and get to clean it it's probably still the time to save the lens (as you don't see any effect on pictures yet.)

Similar Threads

  1. Tele-Xenar 360/5.5: strange thread on front element
    By Andrey Vorobyov in forum Lenses & Lens Accessories
    Replies: 7
    Last Post: 29-Apr-2010, 09:51
  2. Ansco front focus?
    By Fred Haeseker in forum Cameras & Camera Accessories
    Replies: 3
    Last Post: 1-Sep-2008, 14:12
  3. Filter size for rear lens element for lens cap purposes
    By Navy Moose in forum Lenses & Lens Accessories
    Replies: 3
    Last Post: 23-May-2008, 18:53
  4. Can the front lens from a Kodak 250mm Wide Field be removed?
    By William Leviit in forum Lenses & Lens Accessories
    Replies: 6
    Last Post: 15-Sep-2000, 12:04

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •