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The Sony A77's high ISO performance is terrible

post #1 of 37
Thread Starter 
Visible noise even at ISO 200 in the RAW files. I'd say it's easily 1-2 stops worse than the Nikon D7000 or Canon 7D.

2sa1gzr.jpg

By ISO 400, the RAWs already have quite a bit of noise. Reminds me of the old Nikon D70 I used to have.

2j1n705.jpg

What good is 24 MP when you've got noise crepping in even at ISO 200?

And I don't think I'm exaggerating when I say that the A77 @ ISO 800 looks similar to the D7000 @ ISO 3200:

2s99aif.jpg
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post #2 of 37
What did you expect?
post #3 of 37
Thread Starter 
Quote:
Originally Posted by sub50hz;15454451 
What did you expect?

I wasn't expecting it to beat the D7000 by any means, but looking at the comparison images the A77 honestly has similar ISO performance to a Micro 4/3 camera. Noise is present even at very low ISO.
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post #4 of 37
That's what happens when you cram that many MP onto a crop sensor.
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post #5 of 37
Quote:
Originally Posted by ljason8eg;15454569 
That's what happens when you cram that many MP onto a crop sensor.

exactly and there is a 1/3 stop penalty with the transparent mirror. sony always (exception a55) has had garbage high iso. but from experience it isnt as noisey with 3rd party NR software.

ps. theres a bit of a "crop zoom" due to the higher MP so its a bit less noisey, but i dont think it makes much difference.
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post #6 of 37
i don't that its quite fair to compare them yet. Raw converters can sometimes make a big difference. I'm not expecting a night a day difference but lets all wait til the camera actually comes out before holding judgement. Sony's IDC raw converter sucks big time.
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post #7 of 37
NEX-5n has better noise performance than the 5DII. God that in the A77 would have been stupid amazing.
post #8 of 37
Thread Starter 
Quote:
Originally Posted by soymilk;15456684 
i don't that its quite fair to compare them yet. Raw converters can sometimes make a big difference. I'm not expecting a night a day difference but lets all wait til the camera actually comes out before holding judgement. Sony's IDC raw converter sucks big time.

The camera has been out for a few weeks now in other parts of the world. Someone I know ordered one from Asia and has had it for over a week.
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post #9 of 37
Too many Megapixels. Some companies still use it for marketing. Tear.
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post #10 of 37
Why is it when people discuss the A77 only ONE aspect of image quality is mentioned?

What about resolution, dynamic range, color accuracy? Or features specific to the body - the built in IS, the versatile LCD, EVF (100% coverage, 1.09x magnification, overlaying of menus, exposure information)? Or other features - 1080p60 video with PDAF, 12 FPS with AF? Or the price?
Of course, all of the above are fantastic compared to the competition, but of course they're not mentioned - it will make the A77 look good.

Do you spend your entire time at ISO 1600+?
Edited by aldfig0 - 10/26/11 at 12:24am
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