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Thread: White stuff on aperture blades.

  1. #1

    Join Date
    Jul 2010
    Posts
    18

    White stuff on aperture blades.

    Hello.

    I got a lens in the mail today. And when inspecting it, there is something whiteish on the apertureblades. Everything else is fine with the lens. I cannot find any trouble with it.

    Does anyone have any idea what the white marks on 2 of the blades are?

    Regards, Daniel
    Click image for larger version. 

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  2. #2

    Join Date
    Feb 2012
    Location
    South Texas
    Posts
    831

    Re: White stuff on aperture blades.

    Open the shutter and aperture fully and shine a bright pinpoint flashlight through the lens. Look for white specs or spidery marks on the glass. While your at it look for internal dust and haze too.

  3. #3

    Join Date
    Feb 2006
    Posts
    3,143

    Re: White stuff on aperture blades.

    Wear marks. Normal. They're shutter blades, not aperture blades, by the way.
    One man's Mede is another man's Persian.

  4. #4

    Join Date
    Feb 2012
    Location
    South Texas
    Posts
    831

    Re: White stuff on aperture blades.

    EvonH... I saw the wear marks too and was only concerned about the spots. It's probably just dust or lint. Never-the-less it's a very good idea to inspect the glass thoroughly with a pinpoint light source.

  5. #5

    Join Date
    Jul 2010
    Posts
    18

    Re: White stuff on aperture blades.

    the marks is all thats not excellent. The dust you see is on the front element. I live in a ocean of seedthingies atm. Cant keep anything dustfree for more then three seconds. Thanks for the reassurance EvH. And yes, ofcourse its the shutter. I blame language barriers

  6. #6

    Join Date
    Feb 2006
    Posts
    3,143

    Re: White stuff on aperture blades.

    Quote Originally Posted by Zewrak View Post
    the marks is all thats not excellent. The dust you see is on the front element. I live in a ocean of seedthingies atm. Cant keep anything dustfree for more then three seconds. Thanks for the reassurance EvH. And yes, ofcourse its the shutter. I blame language barriers
    Sorry, I someimes forget we're not all native English speakers here.
    One man's Mede is another man's Persian.

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