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Thread: New to this and saw this in my first lens?

  1. #1

    Join Date
    Mar 2021
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    Question New to this and saw this in my first lens?

    Hi everyone,

    Can anyone tell me what this? Is seperation or?

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    Thank you

  2. #2

    Join Date
    Dec 2018
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    Re: New to this and saw this in my first lens?

    Are you referring to the white specks, or the rainbow?

  3. #3

    Re: New to this and saw this in my first lens?

    Did this discussion not answer your question?: https://www.photrio.com/forum/thread...readed.182420/

  4. #4

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    Re: New to this and saw this in my first lens?

    Or that small semi-circle next to the edge around 6 O'clock?

  5. #5
    jim_jm's Avatar
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    Jan 2013
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    San Diego, CA
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    Re: New to this and saw this in my first lens?

    Those 3 dots are nothing to be worried about. Even if it is schneideritis, it's going to take years or decades to advance, if it does at all.
    Will have zero effect on your images, even if they were in the center of the lens. Every used lens has some sort of flaws, of which most will not be visible in your photos.
    It's more critical that the lens coating is in good condition, which your appears to be.
    The only way to guarantee a pristine lens is to buy one new with a satisfaction guarantee, and keep returning lenses until you find a perfect one.

  6. #6

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    Jul 2008
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    2,141

    Re: New to this and saw this in my first lens?

    Not schneideritis...

    The spot about 6 O'clock appears to be de-cementing or separation of the lens elements.

    The greenish-purple reflection about 10 to 2 O'clock is from the multicoating, normal. If there is separation or de-cementing behind that reflection it cannot be visible due to that reflection.
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    Better images will help sort this out.


    Bernice

  7. #7

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    Mar 2021
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    Re: New to this and saw this in my first lens?

    Quote Originally Posted by Bernice Loui View Post
    Not schneideritis...

    The spot about 6 O'clock appears to be de-cementing or separation of the lens elements.

    The greenish-purple reflection about 10 to 2 O'clock is from the multicoating, normal. If there is separation or de-cementing behind that reflection it cannot be visible due to that reflection.
    Click image for larger version. 

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    Better images will help sort this out.


    Bernice
    I can take more if these arent good enough. Let me know from what angel.

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  8. #8

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    Mar 2021
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    Re: New to this and saw this in my first lens?

    Quote Originally Posted by Dugan View Post
    Are you referring to the white specks, or the rainbow?
    The specks, the rainbow is probably because of the photo. It looks more saturated than in real life.

  9. #9

    Join Date
    Mar 2021
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    Re: New to this and saw this in my first lens?

    Quote Originally Posted by Moman View Post
    I can take more if these arent good enough. Let me know from what angel.

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    Two other photos here with the blades open.

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  10. #10

    Join Date
    Mar 2021
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    Re: New to this and saw this in my first lens?

    Quote Originally Posted by jim_jm View Post
    Those 3 dots are nothing to be worried about. Even if it is schneideritis, it's going to take years or decades to advance, if it does at all.
    Will have zero effect on your images, even if they were in the center of the lens. Every used lens has some sort of flaws, of which most will not be visible in your photos.
    It's more critical that the lens coating is in good condition, which your appears to be.
    The only way to guarantee a pristine lens is to buy one new with a satisfaction guarantee, and keep returning lenses until you find a perfect one.
    Okay, thank you for taking the time to answer.

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