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E-M5 Infrared

Discussion in 'Black and White' started by oldsweng, May 11, 2012.

  1. oldsweng

    oldsweng Mu-43 Regular

    60
    Apr 21, 2011
    Oregon
    Used a Hoya R72 filter. It ended up being about a 50 second exposure at about f11. I then had plenty of work to do in LR4 after converting the RAW to DNG.

    SauvieIsland-2.
     
    • Like Like x 4
  2. CarlB

    CarlB Mu-43 Veteran

    Beautiful image!
     
  3. Sammyboy

    Sammyboy m43 Pro

    Oct 26, 2010
    Steeler Country
    Here's a false color IR taken today. M5 + 14-150 + R72 filter @25mm, ISO 400, f/8, 2 1/2 sec., auto WB,

     
  4. acercanto

    acercanto Mu-43 Regular

    107
    Apr 15, 2011
    SW VA, USA
    These are some really cool photos, but why such long exposures? Vegetation is extremely reflective in the NIR, so shouldn't a good exposure be much shorter than even for visible?

    Curious,
    Acer
     
  5. Sammyboy

    Sammyboy m43 Pro

    Oct 26, 2010
    Steeler Country
    Long exposures are needed to overcome the filter that's over the camera sensor. Cameras with modified sensors can use more normal like exposures.
     
  6. acercanto

    acercanto Mu-43 Regular

    107
    Apr 15, 2011
    SW VA, USA
    Oh, so these are unmodded cameras??? If so, that's fantastic! I study photogrammetry, and we're always talking about the NIR in relation to vegetation. It'd be awesome to be able to take some pictures that demonstrate what we're learning.

    Cautiously ecstatic,
    Acer
     
  7. phrenic

    phrenic Mu-43 All-Pro

    Sep 13, 2010
    Interesting. I've done a few IR test shots but was using 10seconds or so at maybe f8 or so in typical daylight. I'll try a long exposure next time. Worried about my noisy G1/Ep1 sensor though.