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Evaluation of Your Lens Copy

Discussion in 'Native Lenses' started by NWright, Aug 20, 2014.

  1. NWright

    NWright Mu-43 Regular

    193
    Jan 13, 2014
    Michigan
    I just ordered a used Oly 25mm 1.8 via B and H.


    The lens was rated as a "9+" condition.

    My Question Is: What should I look for to make sure I have a "good" copy? (I can return it within 30 days)


    I see folks on the forum talk about lens centering quite a bit. How do I make sure my lens is centered?

    Are there any other things to watch for in a relatively new lens? (I'm sure there won't be fogging/weird rattles/etc.)



    Thanks!!!
     
  2. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    Centering... Take a pic of a flat object, fill up the frame and make sure you're perpendicular to the object.
    Check result to make sure no corner is much worse (sharpness) than the other corners.

    Barry


    Sent from my iPad using Mu-43
     
  3. kevinparis

    kevinparis Cantankerous Scotsman

    Feb 12, 2010
    Gent, Belgium
    Alternatively go out and take the photos you like to take and see if your happy with the lens

    thats all that matters

    K
     
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