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Turning off Noise Reduction/Filter improves AF

Discussion in 'Olympus Cameras' started by Bhupinder2002, Feb 25, 2012.

  1. Bhupinder2002

    Bhupinder2002 Mu-43 Hall of Famer

    Hi Guys
    I always turn off NR and Noise Filter on my PENs. Today I just turned them on and to slowed my EPL2 a lot. I think newer PEN users should note this point .There is a drastic improvement in AF on my EPL2 after turning NR and NF off.
    Cheers
    Bhupinder
     
    • Like Like x 1
  2. leonberdi

    leonberdi Mu-43 Regular

    133
    Apr 15, 2011
    Montreal
    I'm not disputing your findings, but that seems odd. I have to imagine that NR would occur after the photo is taken, so why would that affect AF speed?
     
  3. pjohngren

    pjohngren Mu-43 Top Veteran

    560
    Oct 15, 2010
    With my G3, I turn off all NR/Noise filters and get a real improvement in clarity because all noise filters do is blur the image. They are only there so that people won't whine about noise at higher ISOs. They do nothing good, in my view.

    The better approach is to use IR, or "Intelegent Resolution" with a G3 and crank it up to High. This applies sharpenning only to those areas with detail and edges, and not to blank areas like the sky. I leave IR and ID (Intelegent Dynamic) both on high, set sharpenning to +2, and the results are great. If I get some noise at 1600, that's fine with me, as long as I have detail.
     
    • Like Like x 1
  4. elandel

    elandel Mu-43 All-Pro

    Apr 16, 2010
    Milan, Italy
    agree
     
  5. Bhupinder2002

    Bhupinder2002 Mu-43 Hall of Famer

    I have no idea but on my EPL2 and even now on OMD , It seem to work.
    Cheers
     
  6. gugarci

    gugarci Mu-43 Veteran

    304
    Jul 8, 2012
    Lyndhurst, NJ
    Bill
    I turned them all off in all my cameras including my LX3. These filters kill details.
     
  7. Bhupinder2002

    Bhupinder2002 Mu-43 Hall of Famer

    :eek:
    I do the same thing .
    Cheers
     
  8. Cruzan80

    Cruzan80 Mu-43 All-Pro

    Aug 23, 2012
    Denver, Co
    Sean Rastsmith
    From everything I have read, the IR and ID only apply to jpegs, not raw.
     
  9. AceAceBaby

    AceAceBaby Mu-43 Veteran

    249
    Jan 21, 2013
    Aren't jpeg processes reflected in the screen/viewfinder? Would some/any/all of this processing for live view count towards some lag in the system as you view it?
     
  10. atnbirdie

    atnbirdie Mu-43 Regular

    53
    Apr 13, 2013
    Maryland
    Filters may reduce image quality but affect JPEGS only, not RAWs.

    NR ( in em5) involves shooting a dark and subtracting hot pixels, not reduction in the sense of Nik or NoiseNinja software. If set to auto, NR only kicks in on long exposures. I think that starts at about a second, but check manual to be sure.
     
  11. cstevens

    cstevens Mu-43 Veteran

    411
    Feb 11, 2010
    UK
    Correct, however it might still effect AF, and if it does I think turning them off is a no brainer especially if you shoot RAW.
     
  12. dhazeghi

    dhazeghi Mu-43 Hall of Famer

    Aug 6, 2010
    San Jose, CA
    Dara
    Everything must be applied, in order to display accurately on the LCD/EVF. The AF system seems to work off of something similar to what we see, so changes in JPEG settings can actually effect AF performance. That said, the differences aren't very dramatic.