Aglet said:mashuto said:Aglet said:the 5D4, 7D2 and 80D are pretty much improved tho, compared to many of Canon's earlier bodies.
They have less noise and considerably less fixed pattern noise which are key to 'iso invariance."
however, they still have a rather non-linear signal-to-noise-ratio vs exposure level (see DxOmark, full SNR plots) which is exacerbated at lower ISOs... so this kind of gets in the way of the "iso invariance" ability.
That said, these newer bodies, and hopefully the 6D2, will produce raw files that can take considerably more manipulation in post without falling apart.
But still not quite as much as everybody else's cameras... FWIW, Canon's latest bodies are "good enough" to consider iso-invariant to some degree.
This is my hope for the 6D2. As a current 6D owner who primarily focuses on landscapes, the 6D has been great, but I very often run into situations where pushing exposure and shadows in post more than about a stop, and as you say, it just falls apart.
I preordered the 6D2, based on the feature set and the hope that dynamic range is improved and that that its more "iso invariant" than before to the point that I can really manipulate my files. The features I am sold on, but sensor quality I am not. But if the current batch of canon cameras is significantly improved in that aspect from the original 6D and if the 6D2 matches the current crop of cameras (like the 5D4), then I will be happy. Its just still unknown exactly how well it will perform. Its the one thing thats holding me back from feeling completely confident in my preorder. So I am really looking to see just how well it performs, just how good the dynamic range is, and just how much we can manipulate and push RAW files before they become worthless.
I ran into those limitations with my 5D2, 7D, and 60D. They were all nice to use but had too much fixed pattern noise. That's when I decided I wanted better tools.
Oddly, I had fewer problems with my older 40D and even some old Rebels running Digic 3.
6D should be a bit better than the old 5D2 I had but real improvements came from Canon with the 7D2, 80D and 5D4. Still kind of noisy in the dark areas but at least no more serious fixed pattern noise problems so that would allow more raw file mangling in post.
Hopefully ALL new Canon bodies will perform better like that and then I can stop poking at them with a stick. LOL
Yea, the 6D that I currently own was a significant improvement over the 60D I had before. My hope still remains that the 6D2 offers noticeable improvement again over the 6D, otherwise for me, I am not sure the price is worth it as an upgrade.
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