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Have you checked out the low-light shootout Sony A7S vs. A7R vs. Canon EOS 5D III on DPreview?

Discussion in 'The Watering Hole' started by Jock Elliott, Jun 23, 2014.

  1. Jock Elliott

    Jock Elliott SC All-Pro

    Jan 3, 2012
    Troy, NY
  2. bartjeej

    bartjeej SC Hall of Famer

    Nov 12, 2010
    bart
    It is impressive, but it does show that the A7s's advantage lies mainly in the ISO levels that other cameras don't have, and when it comes to medium high ISO's, in the shadows of scenes. For "normal" ISO values, up to 6400 or so, there's very little or no difference, even in the shadows.

    So if you never feel the need to go over ISO 6400, or if you do but you want your exposures to be "normal" (and not dark like a night scene), you might as well get the regular a7 or the a7r and have the option to use their resolution advantage.

    Well, the a7s still has 4k video (to an external recorder) and the electronic shutter ofcourse...
     
  3. Luckypenguin

    Luckypenguin SC Hall of Famer

    Dec 24, 2010
    Brisbane, Australia
    Nic
    ISO 409600 for the win!
     
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  4. Luke

    Luke Super Moderator

    Nov 11, 2011
    Milwaukee, WI USA
    Luke
    just think...in a few years all cameras will be good at ISO 25600 (at least).
     
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  5. bartjeej

    bartjeej SC Hall of Famer

    Nov 12, 2010
    bart
    Yeah, that's pretty incredible. It's hard to imagine many situations requiring more than that!
     
  6. Biro

    Biro SC All-Pro

    Aug 7, 2011
    Jersey Shore
    Steve
    They said the same thing about ISO 1600 a decade ago. And ISO 800 a decade before that. :wink:
     
  7. Chrisnmn

    Chrisnmn SC Veteran

    405
    Jul 8, 2012
    Auckland, New Zealand
    Chris Leskovsek
    Theres actually pretty incredible people 'encountering' situations 'needing' ISO25600. Thats pretty much a 'security camera' or people wanting to transform the night into day.
     
  8. bartjeej

    bartjeej SC Hall of Famer

    Nov 12, 2010
    bart
    Fair enough :wink: but 'more than that' would be 51200 (if you count full stops only), which would mean that a shot requiring a shutterspeed of 1/10 at ISO 6400 - and I don't remember encountering many of those situations - could now be taken at 1/80th, which at most focal lengths and in most situations should be enough for a sharp shot.

    Sure, the situations requiring ISO 409600 will always exist (the Coal Mine Football League matches being a prime example) but for the most part, shutter speed and dof will be two parameters that can be set more or less independently with ISO as the parameter that makes the exposure work. How about extending the low ISO capabilities to make some gains in the other direction as well?
     
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  9. Gubrz

    Gubrz O.* Gonzo's & Bentley's Dad

    979
    Jun 5, 2012
    Austin, TX
    Eliot
    i was actually LESS impressed after seeing it
    it was the downsizing that made everything so similar, it lost its WOW! factor for me

    now i think i need an a7r and just shrink everything to 12mp size images...
     
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  10. Luke

    Luke Super Moderator

    Nov 11, 2011
    Milwaukee, WI USA
    Luke
    E, you need two a7r's mounted to shoot panorama style. Nothing less will do.
     
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  11. Luckypenguin

    Luckypenguin SC Hall of Famer

    Dec 24, 2010
    Brisbane, Australia
    Nic
    The interesting thing I find about the results from the A7S is that it's advertised low noise, high ISO capabilities don't translate across the full range of ISOs but rather are noticeable only at ludicrous ISO values. My erroneous expectation was that it was going to show less noise at ISO values like 6400 or 3200
     
  12. Gubrz

    Gubrz O.* Gonzo's & Bentley's Dad

    979
    Jun 5, 2012
    Austin, TX
    Eliot
    i need a belt with them strapped all the way around me! 360 degree sony style! :D lol
     
  13. Rhino123

    Rhino123 SC Veteran

    201
    May 11, 2014
    Singapore
    Tiew Chong Yi
    Actually... I am not impress at all. Looking at the photos, I noticed that the 5DmkIII do produce better details... although with slightly more noise.

    http://www.dpreview.com/reviews/sony-alpha-a7r/16

    Attached is another review. I have downloaded the files, resize the Canon's 5DmkIII and 6D pic size to the same as the Sony, and noticed that the difference really is not that significant... the weird thing about 5DmkIII is the very bad 'red' color noise, other than that, result are comparable.

    Actually I am very surprise at the result, the 5DmkIII was introduce in 2012 and was a almost 2 years old camera, result is comparable to a recently introduced A7S which I think should perform much better. In actuality, I am quite disappointed.
     
  14. Amin Sabet

    Amin Sabet Administrator

    Jul 3, 2010
    I am very impressed with the A7S, but not enough to buy one at $2500 when there are so many A7 bodies in perfect used condition selling for $1200 or less. Up to ISO 6400, it seems to me that the differences are minor. At 12800 the A7S begins to pull away, and at 25,600 it's no longer a contest. Here is the DPR Studio Scene Comparison to illustrate those differences:

    14309983548_ba65c6b937_o. 14495288754_7b949a691d_o. 14516698853_1e1cf5f2fe_o.
     
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