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Panasonic GH3 and 35-100 samples posted by Fourthirds User

Discussion in 'Micro 4/3 News and Rumors' started by dhazeghi, Oct 9, 2012.

  1. dhazeghi

    dhazeghi Mu-43 Hall of Famer

    Aug 6, 2010
    San Jose, CA
    Dara
    Ian Burley at Fourthirds User has gotten hold of a GH3 and managed to post some (JPEG) samples. Interestingly, he also had access to the new 35-100/2.8, which was used for some of the shots.
     
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  2. Amin Sabet

    Amin Sabet Administrator

    Apr 10, 2009
    Boston, MA (USA)
    • Like Like x 1
  3. dhazeghi

    dhazeghi Mu-43 Hall of Famer

    Aug 6, 2010
    San Jose, CA
    Dara
  4. Robstar1963

    Robstar1963 Mu-43 Top Veteran

    895
    Jun 10, 2011
    Isle of Wight England UK
    Robert (Rob)
    Hi
    What's a 'Global Shutter' - seen it mentioned several times but unaware of what this actually is ?
    Rob
     
  5. I also note that Ian mentions the touchscreen as being of the capacitive type now.
     
  6. meyerweb

    meyerweb Mu-43 Hall of Famer

    Sep 5, 2011
    Current CMOS sensors read out one row of data at a time. A "global shutter," which really isn't a shutter at all, refers to a sensor that can read out all rows simultaneously.
     
  7. WT21

    WT21 Mu-43 Hall of Famer

    Feb 19, 2010
    Boston
    Bokeh on the 35-100 looks very nice, if not perhaps a bit boring: http://fourthirds-user.com/sample_images/414/P1010339.jpg

    global shutter is an electronic shutter without a mechanical shutter (and noise). It's still in development. Not quite yet ready for prime time. Nex 5n has a first shutter that's electronic, but it can degrade IQ under certain circumstances.
     
  8. arad85

    arad85 Mu-43 Veteran

    477
    Aug 16, 2012
    The Pan G5 also has an electronic shutter. What is different about a global shutter is that all lines are exposed simultaneously. A rolling global shutter (which is what all implementations are so far AFAIK) takes one line at a time but takes a finite amount of time to read the whole sensor. This means the top & bottom - whilst exposed correctly even at high shutter times - are way out along the timeline. Anything moving is distorted.
     
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  9. dhazeghi

    dhazeghi Mu-43 Hall of Famer

    Aug 6, 2010
    San Jose, CA
    Dara
    Global shutter means all photosites can be exposed beginning and ending at the same time, electronically. By contrast, current electronic shutters are rolling, meaning not everything is exposed at the same time, giving rise to odd effects in scenes where there is motion as well as the so-called jello effect when shooting video.
     
  10. alans

    alans Mu-43 Veteran

    340
    Feb 28, 2010
    "The GH3 has a PC-sync port for studio flash and now supports the multi-channel Olympus wireless remote control (RC) flash system, a first for Panasonic Lumix."

    That's a +.

    " I am a little disappointed that the GH3's fastest sequential shooting rate is only 6fps compared to 9-10 fps on the E-M5. The latter also has a quieter and better damped shutter, but of course you have a solid state electronic shutter option with the GH3, which the E-M5 lacks.

    So for general pro work I can see the GH3 being very attractive while the E-M5 might be better for sports and wildlife."

    I wonder how responsive the GH3 might be as fps is not the only factor determining sports capabilities. But then again he was shooting penguins;)