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Testing Sigma 30mm f2.8 & 45mm M. Zuiko 1.8

Discussion in 'Native Lenses' started by dukenukem, Feb 15, 2013.

  1. dukenukem

    dukenukem Mu-43 Top Veteran

    Sep 9, 2012
    Today, these two crystals have arrived, here a small test, RAW, no processing, focus in "A" 14X zoom, spot metering, tripod, 2 secs. mirror:

    Sigma 30mm f2.8
    E-M5    ---    30mm    f/2.8    1/50s    ISO 200

    M.Zuiko 45mm f2.8
    E-M5    ---    45mm    f/2.8    1/60s    ISO 200

    M.Zuiko 45mm f1.8
    E-M5    ---    45mm    f/1.8    1/160s    ISO 200

    Full scene:

    Sigma 30mm f2.8
    E-M5    ---    30mm    f/2.8    1/50s    ISO 200

    M.Zuiko 45mm f2.8
    E-M5    ---    45mm    f/2.8    1/60s    ISO 200
    • Like Like x 4
  2. RevBob

    RevBob Super Moderator Subscribing Member

    Jun 4, 2011
    NorthWestern PA
    Surprising how small the differences are - but there is a difference. The 45mm is (not surprisingly) a bit better. I suspect it would be even more noticeable in a large print.
  3. dukenukem

    dukenukem Mu-43 Top Veteran

    Sep 9, 2012
    Yes, Zuiko is sharper than Sigma, but not as much as I thought. Processing the photos would be minor differences, probably.
  4. dixeyk

    dixeyk Mu-43 Hall of Famer

    Aug 9, 2010
    Those are pretty close...The color on the Sigma looks a bit warmer and a bit more pleasing to me. The Olympus is sharper but I'm not sure you'd notice without it being pointed out.
  5. woody112704

    woody112704 Mu-43 Top Veteran

    Dec 13, 2012
    And to think that the Sigma is $200-300 cheaper depending on when you got it, pretty crazy.
  6. suntoryjim

    suntoryjim Mu-43 Regular

    Feb 6, 2013
    Got my Sigma 30mm yesterday. I caught it trying to eat my lunch. :biggrin:

    Attached Files:

  7. spatulaboy

    spatulaboy I'm not really here Subscribing Member

    Jul 13, 2011
    North Carolina
    Wow those new Art Sigmas look pretty nice! You need to post that in the Camera P*rn thread.:biggrin:
  8. b_rubenstein

    b_rubenstein Mu-43 All-Pro

    Mar 20, 2012
    Melbourne, FL
    I have both lenses. The Sigma is a very nice lens, I've taken many nice pictures with it and like the long normal focal length, but... The out of focus areas look much nicer with the Olympus, the Sigma has significant amounts of CA (can be easily corrected in software) and doesn't focus nearly as fast. Not to mention that they are far enough apart in focal length, for them to used differently.
  9. Ulfric M Douglas

    Ulfric M Douglas Mu-43 Hall of Famer

    Mar 6, 2010
    Whoa : silver and smooth ...
    If the 19mm looks like that I'm going to hunt one down for style reasons alone.

    In lower light my Sigma 30mm focuses significantly faster than my mZuiko 45mm, just to add a different view to Rubenstein's post.
    In bright light they are both so fast I don't measure.
  10. spatulaboy

    spatulaboy I'm not really here Subscribing Member

    Jul 13, 2011
    North Carolina
    Hmmm... I find the Sigma focus a bit faster than the Oly... whatever they are both crazy fast :2thumbs:
  11. Lawrence A.

    Lawrence A. Mu-43 All-Pro

    Mar 14, 2012
    New Mexico
    The Zuiko is sharper even at f1.8, though not by a lot, by 2.8 it looks a good deal sharper to my eyes. But the Sigma has less contrast; if you boost that I'll bet it looks sharper. Having said that, I'll repeat what I always say: it's not what it looks like straight ooc at 100% that matters; it's the final image. None of those are going to be as big as what 100% represents.

    I just got the 19mm Sigma and like it a lot.
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