Site Sponsors
Results 1 to 6 of 6

Thread: Polarizer deterioration

  1. #1
    Super Duper
    Senior Member
    Knorp's Avatar
    Join Date
    Dec 2007
    Posts
    5,597
    Post Thanks / Like

    Question Polarizer deterioration

    Anyone ever experienced this with (C)PL filters ?

    About deterioration

    A PL filter will deteriorate due to its structure. PL filters, if degraded, will become reddish, instead of an original grey color. It is recommended that a new PL filter be purchased every 4 to 5 years if you are serious about your work.
    Text from the Marumi website ...

    TIA
    Bart ...

  2. #2
    Vivek
    Guest

    Re: Polarizer deterioration

    Bart, Look for delamination. The polarizer elements are sandwiched between glass.
    Thanks 1 Member(s) thanked for this post

  3. #3
    Senior Member thrice's Avatar
    Join Date
    Aug 2009
    Posts
    1,273
    Post Thanks / Like

    Re: Polarizer deterioration

    I have a couple of the first mrc kaesemann linear polarisers b+w brought out. Still very neutral and functional. Maybe if they’re exposed to high intensity UV 24/7 or if they're super low quality they might degrade...
    My Tumblr
    Thanks 1 Member(s) thanked for this post

  4. #4
    Super Duper
    Senior Member
    Knorp's Avatar
    Join Date
    Dec 2007
    Posts
    5,597
    Post Thanks / Like

    Re: Polarizer deterioration

    Quote Originally Posted by Vivek View Post
    Bart, Look for delamination. The polarizer elements are sandwiched between glass.
    Thanks Vivek, but my polarisers are still perfectly greyish.
    I was just wondering if anybody experienced this reddish discolouring this particular manufacturer is referring to.

    Kind regards.
    Bart ...

  5. #5
    Super Duper
    Senior Member
    Knorp's Avatar
    Join Date
    Dec 2007
    Posts
    5,597
    Post Thanks / Like

    Re: Polarizer deterioration

    Quote Originally Posted by thrice View Post
    I have a couple of the first mrc kaesemann linear polarisers b+w brought out. Still very neutral and functional. Maybe if they’re exposed to high intensity UV 24/7 or if they're super low quality they might degrade...
    Thanks, like you I have some pretty old polarisers but mine too still look fine and function properly.
    It's just that I've never heard of such claim before.
    Bart ...

  6. #6
    Senior Member thrice's Avatar
    Join Date
    Aug 2009
    Posts
    1,273
    Post Thanks / Like

    Re: Polarizer deterioration

    Hmmm yeah I've never seen the discolouration deterioration mentioned before.

    I'll check my Kenko Vernier which I got with my M9 in 2009, that would be the lowest quality CPL I own (still pretty damn good though).

Posting Permissions

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