Comparing 12-40 with primes at 2.8?

Discussion in 'Native Lenses' started by Viktor, Oct 4, 2013.

  1. Viktor

    Viktor Mu-43 Regular

    Apr 27, 2012
    I guess when using Oly 12mm and Panaleica 25mm at 2.8, they will give you higher quality images than the 12-40 zoom wide open at those lengths. But do you recon its the same, when comparing the zoom with Oly 17mm at 2.8?
  2. dhazeghi

    dhazeghi Mu-43 Hall of Famer Subscribing Member

    Aug 6, 2010
    San Jose, CA
    Better in what respect?

    I expect the 12-40/2.8 to handily beat the 17/2.8 for sharpness, and likely to beat the 12/2 as well. The 25/1.4 I expect to be sharper in the center, but comparable in the corners. But this is just speculation, based on the MTF graphs of the 12-40 and the fact that the 17/2.8 is rather weak all around, the 12/2 is good but not great, and the 25/1.4 is very sharp in the center but never quite catches up in the corners.
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  3. b_rubenstein

    b_rubenstein Mu-43 All-Pro

    Mar 20, 2012
    Melbourne, FL
    The MTF graphs that all of the camera companies publish are calculated and not a measurement of an actual lens. How close the graphs match actual lens performance depends on how well the physical lens matches the design and how good the mathematical lens model used for the calculation is.
  4. kevinparis

    kevinparis Cantankerous Scotsman Subscribing Member

    Feb 12, 2010
    Gent, Belgium
    suspect he might be meaning the newer 17/1.8.... not the older 17/2.8.

  5. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    So, we're now evaluating IQ of lenses that don't even exist yet?
  6. dhazeghi

    dhazeghi Mu-43 Hall of Famer Subscribing Member

    Aug 6, 2010
    San Jose, CA
    Unless all those previews of the 12-40/2.8 also involve the use of a time-machine, I'm pretty sure the lens does exist.
  7. mlphotic

    mlphotic Mu-43 Rookie

    May 24, 2013
    Finland, Kangasala
    All of these lenses are good enough to produce better pictures than most of us ever are able to take...
  8. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    Exactly - PREVIEWS. Nobody has laid hands on a "production" model to my knowledge.
  9. tjdean01

    tjdean01 Mu-43 Top Veteran

    Feb 20, 2013
    Are they going to be different?
  10. dav1dz

    dav1dz Mu-43 Top Veteran

    Nov 6, 2012
    In my experience, most pre-production model reviews either have their quarks fixed by the mass production stage, or remains the same. It never gets worse.
  11. wildwildwes

    wildwildwes Mu-43 Veteran

    Jun 9, 2012
    Brooklyn, NY
    speak for yourself pal! :dance3:
  12. tanngrisnir3

    tanngrisnir3 Mu-43 Top Veteran

    Oct 18, 2011
    The 25 in the corners? Not to my experience. Once you hit about f4, it's a razor across the frame. Same with the 12mm.
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