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PostPosted: Fri Apr 30, 2010 5:57 pm 
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Just read the review of the A900, and wondering how much noise there is. Even one of the cheapest (1000D) has better quality at higher ISOs.
Why beats a cropped frame a FF in noise? The Sony isnt that old?

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PostPosted: Fri Apr 30, 2010 6:05 pm 
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The big question is, how and what exactly are you comparing?

If you're comparing camera jpeg viewed 100% on screen, that has historically been a weakness of Sony, since they don't do any chroma noise reduction leading to highly visible colour blotches. If you put that through any external chroma noise reduction system, it looks a lot better already. RAW conversion would level the playing field.

Also remember the A900 has a high pixel count. If you resize the total to give the same output size in both cases, you will start to see the advantage the bigger sensor area gives since individual pixel noise is less significant.

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PostPosted: Fri Apr 30, 2010 6:16 pm 
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I know, when viewing at the same magnification the A900 has much less noise, of course.
But, that chroma noise, it is really bad, isnt it?
But yea, as you said, when viewing at the rival's pixel count, it is okay.

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PostPosted: Fri Apr 30, 2010 6:27 pm 
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Sony's earlier cameras (before A5xx generation) didn't do chroma noise reduction on the jpeg, so yes they look bad from that. But it is very easy to process out. Maybe a bit less convenient, but not a big deal. And again, the majority of A900 buyers are likely to shoot in raw, where any half decent converter will deal with that anyway.

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PostPosted: Fri Apr 30, 2010 6:55 pm 
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Pixel peeping, plus such a comparison leaves a good noise reduction programme out of the consideration.

- Bjorn -

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