Should I exchange this lens? (40-150 PRO)

Discussion in 'Native Lenses' started by daanh, Mar 30, 2015.

  1. daanh

    daanh Mu-43 Regular

    Jul 25, 2010
    Last edited: Mar 30, 2015
    • Funny Funny x 3
  2. DeeJayK

    DeeJayK Mu-43 Hall of Famer

    Feb 8, 2011
    Pacific Northwest, USA
    If you're looking for better sharpness, you may need to invest in some finer-tipped brushes. :p
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  3. m43happy

    m43happy Mu-43 Top Veteran

    Feb 18, 2012
    There is some truth to this actually. It's hard to gauge sharpness when the subject itself isn't sharp to begin with. Try shooting still life like a flower or random items on your kitchen counter.
  4. daanh

    daanh Mu-43 Regular

    Jul 25, 2010
    Okay, it may not be the best subject there is, but when I look at it real close, there is a lot of detail actually. I can see really small dots from the printing process, that I don't see in these pictures.
  5. daanh

    daanh Mu-43 Regular

    Jul 25, 2010
  6. gryphon1911

    gryphon1911 Mu-43 Hall of Famer

    Mar 13, 2014
    Central Ohio, USA
    my 40-150/2.8 is sharp at every focal length. I'm not one for shooting test targets, but this might be a case where a very carefully setup test on a tripod is in order. Shooting with different lenses sometimes requires different technique. You can eliminate that it is something you are doing versus a lens defect.
  7. pdk42

    pdk42 One of the "Eh?" team

    Jan 11, 2013
    Leamington Spa, UK
    I'd suggest you first get out and take some shots of real-world subjects before you go sending stuff back. Remember too that it's only macro lenses that are designed to give a flat focus plane (i.e for photographing paintings etc).
  8. Jfrader

    Jfrader Guest

    Unless you were on a tripod, those are pretty marginal shutter speeds for the focal length, especially the one with the t/c. For those focal lengths and that heavy lens, I'd want to be at a minimum of 1/500, more if possible.
  9. jnewell

    jnewell Mu-43 All-Pro

    Jun 23, 2011
    Boston, MA
    Echo the comment on the tripod - a good, study one that's not over-extended, with the self-timer to fire the shutter. If you're going to test critical sharpness, you have to eliminate the other potential causes of lack of sharpness.
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