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E-P3: Odd halos around lamps

Discussion in 'Olympus Cameras' started by jamespetts, Oct 24, 2012.

  1. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    Does anyone else have the following issue with the E-P3 (or other camera using the first generation Micro Four Thirds sensors)?

    8120297499_d00cfd0cac_b.
    City bollard by James E. Petts, on Flickr

    As can be seen, the lamps have a sort of halo around them. This was taken with the E-P3, the Panasonic 25mm f/1.4 lens on 1250 ISO. They do look rather odd - what might be causing them?
     
  2. phrenic

    phrenic Mu-43 All-Pro

    Sep 13, 2010
    Flare from a lens filter?

    Sent from my iPad using Mu-43 App
     
  3. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    Hmm - no filter was being used, so it can't be that; and I don't think that it's a lens issue, either, as the distinct rings around the light source don't seem to be a natural optical artefact.
     
  4. svtquattro

    svtquattro Mu-43 Veteran

    354
    Sep 24, 2012
    Vancouver, Canada
    What f/ stop did you use?
     
  5. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    f/1.4 - the light was low.
     
  6. Aegon

    Aegon Mu-43 Veteran

    334
    Nov 3, 2011
    Portland, OR
  7. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    Ahh, I see, thank you! I shall keep an eye out for the Olympus 17mm f/1.8 when it is released, then...

    Would stopping down help?
     
  8. Aegon

    Aegon Mu-43 Veteran

    334
    Nov 3, 2011
    Portland, OR
    Stopping down definitely helps. See the examples from the second link. By ƒ/2.8 the OOF area is normal.

    The second link also shows the concentric variation in brightness that are apparently caused by either the machining of the aspheric element and/or by the glues holding elements together.
     
  9. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    I see - interesting!
     
  10. dnightingale

    dnightingale Mu-43 Regular

    131
    Oct 12, 2012
    Sydney, Australia
    Darren
    I have had a few flare issues. These two fails were taken with P14 2.5 on a E-PL2

    The first one is f2.5 & the second f14

    Jetty_Fail.

    Jetty_Fail2.
     
  11. jamespetts

    jamespetts Mu-43 Top Veteran

    803
    May 21, 2011
    London, England
    f/14 or f/1.4?
     
  12. Point light sources rarely look good when shot at a lens' maximum aperture.
     
  13. st3v4nt

    st3v4nt Mu-43 Veteran

    317
    May 26, 2011
    Jakarta, Indonesia
    Second picture looks like the notorious red spot flare of EPL-2 due to the thin AA Filter but usually it happen when you shoot to the sun.

    FYI: E-PL2 red dot problem
     
  14. thelaxong

    thelaxong Mu-43 user

    791
    Jan 13, 2011
    Melbourne - Australia
    As he already mentioned the 14mm lens. It could only be f/14 as the Panny 14mm has a max aperture of f/2.5.
     
  15. dnightingale

    dnightingale Mu-43 Regular

    131
    Oct 12, 2012
    Sydney, Australia
    Darren
    Yes.. f14 on the 14mm. The f2.5 shot caught me a little by surprise, though I had heard of the redspot issue at the time.
     
  16. svtquattro

    svtquattro Mu-43 Veteran

    354
    Sep 24, 2012
    Vancouver, Canada
    Yuck to the flare!
     
  17. Vivalo

    Vivalo Olympus Loser

    931
    Nov 16, 2010
    Finland
    Here's an example of normal lens flare with Panasonic (there, I wrote it properly :biggrin:) 20mm @ f1.7 with E-P1, ISO1000 when I was testing my flash positioning before wedding. I don't remember if I was using a filter in this shot below. But my "twenty" definitely does that kind of flare wide open even without the filter. To be honest, I kind of like the effect usually.

    20110901-P9011780-Small.


    20110901-P9011780-Small-2.
     
  18. applemint

    applemint Mu-43 Veteran

    345
    Jan 24, 2012
  19. jocana_13

    jocana_13 New to Mu-43

    1
    Aug 28, 2011
    Torrent, Valencia, Spain
    Jose
    The E-P3 camera produce odd green halos?