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You can get some very nice images out the T4i, but you should probably override the defaults.
Lori Grunin
I've been reviewing hardware and software, devising testing methodology and handed out buying advice for what seems like forever; I'm currently absorbed by computers and gaming hardware, but previously spent many years concentrating on cameras. I've also volunteered with a cat rescue for over 15 years doing adoptions, designing marketing materials, managing volunteers and, of course, photographing cats.
The T4i's noise profile is pretty good, though like many cameras it fares a lot better in focused areas than out-of-focus ones. Here, it preserves clean detail until about ISO 400, at which point it starts to degrade.
Color settings differences aside -- and this is one case where I like the deeper tones produced by the default
Auto Picture Style -- you can do better processing the raws at ISO 800 (bottom) than with the JPEGs (top).
As with most cameras, in-focus areas at high ISO sensitivities look pretty good, but out-of-focus areas display lots of artifacts, including hot pixels.
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