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| p.1 #3 · p.1 #3 · After 1/2 yr, how does 5DIII high-ISO stack up? |
Around the launch period, there were lots of varied impressions on the high-iso capabilities of the 5DIII. I'll list some things I remembered off the top of my head (I'm only concerned with raws)
- 1/2 stop better than the 5DII in controlled tests (this is the most conservative assessment I've seen)
I think it holds up, maybe a bit closer to 2/3rds of a stop, but you need to keep in mind that rates ISOs about 1/3 stop more conservatively. So comparing at the same ISO it might be closer to only 1/3 stop better, but that's not quite fair since the two cameras don't apply the same gain for the same ISO number.
- More than 1 stop better than the 5DII in "real" situations.
In many real situations, no. In some yes. At very high ISOs when the image has large portions in the really darker and shadowy near black regions the 5D2 images might get ruined but the 5D3 still look OK so in certain cases maybe it is 1-2 stops more usable at very, very high ISO even if the mid tones, bright tones and bright shadows might only look 1/2 to 2/3rds stops better. So it depends, in real situations many times I would say no, but then again it's not that hard to find real situations where I'd have to say yes.
- 5DIII raws "clean up better" than 5DII raws in PP
still deciding, but probably
- Much less banding than 5DII when shadows lifted
sadly no unless you are talking about high iso, but happily you are
(as for low iso, yeah the got rid of all the horiz banding so no cross hatching but the vertical is still there in full force so now I absolutely would not say that at all
i would say it's still among the worser set of canon cameras for low iso shadow banding, 1DX, 40D, 1D3, 1Ds3 etc all have lots less)
but yeah at high iso i would say it has less banding for pulled shadows than the 5D2 for sure
- Better than D800 starting at ISO3200
maybe closer to starting at ISO6400
After 6 months, are there any more refined assessments of the the 5DIII's high iso performance? Compared to 5DII, D800, 1D4, etc? What is your assessment?
worse DR at high ISO than D4,1DX but better than 5D2, similar to D800 until you go reallly high and then 5D3 better
a trace worse SNR than the D4, maybe 1/3 stop, maybe same vs 1DX but hard to say some 1DX samples made the performance seem similar to 1/3 stop better but others made it seem a big 2/34ds stop better
Edited on Sep 21, 2012 at 12:37 AM · View previous versions