Do lens dust particles matter?

Discussion in 'Open Discussion' started by Trankster, Jun 4, 2015.

  1. Trankster

    Trankster Mu-43 Regular

    Jan 19, 2013
    Irvine, CA
    I've noticed pre-owned lens sale ads often mention dust particles. I also noticed 3 particles inside my old legacy OM 135mm lens which has been carefully stored for many years. Do a few tiny particles affect photos, digital or film?
  2. DeeJayK

    DeeJayK Mu-43 Hall of Famer

    Feb 8, 2011
    Pacific Northwest, USA
    Generally speaking, no, a few dust particles inside a lens are not going to noticeably impact image quality. Every lens has some dust inside it. This blog post might put your mind at ease.
    Last edited: Jun 4, 2015
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  3. tyrphoto

    tyrphoto Mu-43 All-Pro

    May 25, 2014
    Seoul | NYC
    Dust inside the lens rarely affects IQ, especially if the dust particles are small. It's more of an eyesore if anything. Dust on the sensor however, is another matter.
  4. Crdome

    Crdome Mu-43 Hall of Famer Subscribing Member

    Sep 11, 2011
    West Central Indiana
    You would be amazed at how large of imperfection can be inside or on the front element of a lens. I had a fungus larger than pea-size on an internal element of a Nikkor 50mm f/1.4. It was optically invisible.
  5. Trankster

    Trankster Mu-43 Regular

    Jan 19, 2013
    Irvine, CA
    Good information and blog link. Thank you.
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