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Colours on the E-M1 vs E-M5 (raw using LR5.4)

Discussion in 'Olympus Cameras' started by pdk42, Jun 16, 2014.

  1. pdk42

    pdk42 One of the "Eh?" team

    Jan 11, 2013
    Leamington Spa, UK
    I've recently added an E-M1 to my kit, so now I'm running an E-M5 and E-M1 (although I've previously had an E-PL5 and briefly an E-P5). I'm finding the colours off the E-M1 to be noticeably different to those off the other three cameras (which of course all share the same Sony sensor). TBH, I'm finding the E-M5 colours somewhat more pleasing and accurate - especially the reds. However, I'm a raw shooter using LR5 and I can get quite different colour rendering by applying a different profile. I'm also finding that the E-M1 tends to overexpose compared to the E-M5 (that is, same ISO, same exposure, but the E-M1 shots are lighter indicating a different ISO calibration). The examples below show this. All are shot at ISO 200 and the same exposure - 1/2000 @f1.8 on the Oly 25:

    E-M5. JPEG from raw. All LR defaults, incl AdobeStandard profile. No additional changes
    em5_adobestandard.

    E-M1. JPEG from raw. All LR defaults, incl AdobeStandard profile. No additional changes
    em1_adobestandard.

    So - quite a big colour difference. The E-M5 shot is closer to the real colours - they are a very vibrant red.

    Here is the same comparison using the Camera Natural profile:

    E-M5. JPEG from raw. All LR defaults, except using CameraNatural profile. No additional changes
    em5_cameranatural.

    E-M1. JPEG from raw. All LR defaults, except using CameraNatural profile. No additional changes
    em1_cameranatural.

    This is closer - and in fact, if I apply a -0.5EV correction, it gets pretty close:

    Comparison. EM1 vs EM5. Both with Camera Natural profile and with -0.5 EV correction on E-M1
    em5vsem1.JPG

    I still think the E-M5 colours are a little more authentic though.

    Has anyone else done any comparisons? Are there some good LR profiles available for the E-M1?

    Thanks!
     
  2. Art

    Art Mu-43 All-Pro

    Mar 13, 2011
    San Francisco, CA
    Is it because E-M1 has Panasonic sensor? E-M5 colors look way better even on a small iphone screen.


    Sent from my iPhone using Mu-43
     
  3. OzRay

    OzRay Mu-43 Legend

    Jan 29, 2010
    South Gippsland, Australia
    Ray, not Oz
    The E-M1 does have a Panasonic sensor and so the colours, amongst other things, will be slightly different.
     
  4. Halaking

    Halaking Mu-43 Top Veteran

    667
    Dec 17, 2012
    Los Angeles
    Morris
    Since E-M10 was out after E-M1, anyone has idea of E-M10's sensor brand and color?
     
  5. Ross the fiddler

    Ross the fiddler Mu-43 Hall of Famer

    It would be the Sony (most likely). Same as the E-M5.
     
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  6. letsgofishing

    letsgofishing Mu-43 Veteran

    352
    Nov 21, 2012
    South Africa
    Mike Kaplan
    AFAIK, the EM10 uses the same sensor as the EM5
     
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  7. TransientEye

    TransientEye Mu-43 Regular

    138
    Sep 18, 2013
    Barcelona
    Mark
    The purple looking areas on the E-M1 petals might be because the red channel is blowing out slightly.

    I wonder if the difference is not largely the result of the E-M1 just choosing a slightly brighter exposure - the shadows look brighter. Perhaps under-exposing slightly would make the petal colours much more similar?
     
  8. rdoe

    rdoe Mu-43 Regular

    35
    Aug 10, 2012
    Exactly my findings with the difference between EM-5 and EM-1, the latter seems to (over) expose by 0,5ev. I think it is the difference in sensor and processing, not a very big deal though.
     
  9. Vivalo

    Vivalo Olympus Loser

    931
    Nov 16, 2010
    Finland
    I've noticed that E-M5 tends to blow out red channel very easily. I suppose +0,5 ev over exposure by E-M1 makes the red channel blow out even more easily.
     
  10. TransientEye

    TransientEye Mu-43 Regular

    138
    Sep 18, 2013
    Barcelona
    Mark
    I am not sure why, but photographing intensely red petals seems to be problematic for just about every camera I have used. Quite often the only way get good colours is to underexpose by a stop or even more and the compensate in Lightroom.

    The saturated red also seems to be difficult for some monitors and printing - even if the photograph is spot on, you might not be able to display it!
     
  11. David A

    David A Mu-43 All-Pro

    Sep 30, 2011
    Brisbane, Australia
    The OP said "… if I apply a -0.5EV correction, it gets pretty close…"

    Since we're talking colour matching, and since the exposure data for the 2 images is identical, I assume that the EV correction is being made in Lightroom. If that's the case one needs to be aware that saturation changes with exposure adjustments in Lightroom. If you make a positive exposure adjustment saturation increases, a negative one and saturation decreases. The size of the change to saturation depends on the size of the exposure adjustment.

    Just another thing to consider in working out just what is going on.
     
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