Oly 17mm f2.8 or Pany 14mm f2.5?

Discussion in 'This or That? (MFT only)' started by sin77, Dec 24, 2012.

  1. sin77

    sin77 Mu-43 Veteran

    Dec 9, 2011
    For the same 2nd hand price, which lens should I get?

    I am fine with the focal length of either lens, but mainly to be used on my e-pm2.

    In terms of image quality and focusing speed, which one is better?
  2. Jonathan F/2

    Jonathan F/2 Mu-43 Hall of Famer

    Aug 10, 2011
    Los Angeles, USA
    14mm is optically sharper, but I tend to like the colors of the 17mm. The 14mm makes a better video lens though due to the silent focus.
    • Like Like x 1
  3. demiro

    demiro Mu-43 Hall of Famer

    Nov 7, 2010
    I'd take the 14/2.5 without hesitation. Definitely sharper and faster (AF). And the size on your E-PM2 is a nice bonus.
    • Like Like x 1
  4. drd1135

    drd1135 Zen Snapshooter

    Mar 17, 2011
    Southwest Virginia
    The 14. I have both and seem to grab the 14 almost exclusively. I do worship at the altar of sharpness, however.
  5. jamespetts

    jamespetts Mu-43 Top Veteran

    May 21, 2011
    London, England
    The 14mm is the better lens - smaller and ligher than the 17mm, internal focussing (making focussing faster) and sharper. It is, in my view, the best value for money lens in the Micro Four Thirds system.
    • Like Like x 2
  6. Vivalo

    Vivalo Olympus loser Subscribing Member

    Nov 16, 2010
    14 has better AF and should be sharper also. 17 has more natural FOV but it's also 0,3 ev slower.
    • Like Like x 1
  7. sin77

    sin77 Mu-43 Veteran

    Dec 9, 2011
    Should I be concerned about using Panasonic lenses since Olympus bodies do not perform any correction for chromatic aberation and barrel distortion etc? I think the Panasonic PZ 14-42 x lens is now performing quite badly on my E-PM2.

    What if I add 17 f1.8 or 20 f1.7 into the equation?
    These are just for mild comparison as I am unlikely to buy them with the following reasons:
    1. 17 f1.8 is too expensive at this point in time and quite hard for me to find a used one in my country.
    2. 20 f1.7 has slow or erratic focusing in the sense that it will hunt in low light. It is not that cheap either.

    Also I'm wondering how is the performance of 17 f2.8?
    Does it AF better than 20 f1.7?
    Is the colour, CA and distortion better than 14 f2.5?
    How much slower is the AF speed compared to the 20 f1.7 and the 14 f2.5?
  8. mister_roboto

    mister_roboto Mu-43 Top Veteran

    Jun 14, 2011
    Seattle, WA, USA
    Oly + Pana lenses on bodies of the opposite manufacturer will always correct for distortion, but only Pana lenses on Pana bodies will correct CA. I use a Oly body and Pana lenses, and really have no trouble fixing the CA, I do however exclusively use RAW though. If you use JPG more, it could get annoying (or a lot of RAW shots that need CA tweaking if you're not in the mood to do so).

    Hmmm, I'd say the 17mm f2.8 + 20mm f1.7 AF about the same perceptible speed, one might be faster than the other, but both were noticeably slow and I kind of just tossed them into the "about the same" AF speed category.

    The 14mm AF is very fast. I think it might be the fastest µ4/3 lens, any of those internal focusing lenses are fantastic.

    One other note- I was blown away by the difference in resolution from the 14 to the 17 2.8, the 14mm is hands down the best lens for the money (as many other people say too) in µ4/3, if you can (and don't mind) getting one via ebay from a separated kit, it can be had for $200 or so.
    • Like Like x 2
  9. sin77

    sin77 Mu-43 Veteran

    Dec 9, 2011
    Do you think 14 f2.5 will perform much better (esp CA issue) than PZ 14-42x on my epm2?

    Otherwise I would be better off with the 14-42x, since the max magnification is at 0.34x while 0.1x for 14 f2.5.
    And of course, 14-42x is more versatile in focal length.
  10. milez

    milez Mu-43 Regular

    Dec 25, 2012
    Personally, i feel that 14/2.5 is a very sharp lens. even compared to Oly 17/1.8
    It's less than half the price of 17/1.8 ... small and light. CA is negligible.

    AF speed, 17/1.8 is to me, the fastest µ4/3 lens available. Before that, i think the 12-50 OMD kit lens is the fastest of them all ... in both day and night.
    14/2.5 is fast only in the day. It hunts a little at night.
    • Like Like x 1
  11. littleMT

    littleMT Mu-43 All-Pro

    Apr 8, 2012
    Lucille Sanchez

    the 14mm is okay I suppose.

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