What to check for in a used lens?

Discussion in 'Native Lenses' started by hipertec, Jan 10, 2012.

  1. hipertec

    hipertec Mu-43 Rookie

    Jan 8, 2012
    Picking up a used 20mm 1.7 this morning. Will bring my G2 to test it out.
    What do I need to check to make sure all is right besides the glass for dust or scratches, taking some pixs, and ?
  2. Markb

    Markb Mu-43 Top Veteran

    Jun 9, 2011
    Kent, UK
    Real Name:
    Check that it mounts and unmounts cleanly with no play. Check the manual focus is working. Check the filter threads for any damage. After that it's down to using it.
  3. SimonL

    SimonL Mu-43 Regular

    Apr 15, 2009
    NW England
    Stop right down f/16+ and take a picture of the sky or an evenly bright surface.
    Check the image for dirt/fungus