Noise on other brands

fishy · 07-22-2008, 01:27 PM

Guess noise keeps us occupied

Tripod and long exposures help against noise. So does overexposing a bit (I usually add 0.7 to 1 EV) but not if the subject is not still...
But I still wonder at what level noise is controlled BEFORE the image is compressed into jpeg. Is it all sensor construction / wiring, or do some camera's do something clever to the RAW file?

WMBP · 07-22-2008, 02:02 PM

Originally posted by jlaubza

There is a trick - take multiple shots, minimum three, of the same subject. Image averaging smooths out the noise but does seem to soften edges a bit. Try it and see for yourself. This works great if you can do seven shots of the same subject. You need a sturdy tripod though.

Well, you need more than a sturdy tripod. You also need software that can put your three shots together usefully, and even before that, you need a subject that can sit perfectly still for the time it takes to make three exposures. I don't have either. ;-)

Will

babelphotos · 07-22-2008, 04:57 PM

Comparing the K10 with the 5D is stupid.
The 5D is full frame and 4 times the price.
If you want to compare noise on both, take a Canon in the same range of price.
The K10 is a midrange....no more
5D is a semipro....Pentax dont have semi pros , wathever people say here. Even the K20 is a midrange camera, a few steps under semipro.

But it makes darn good pictures

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07-22-2008, 01:27 PM	#16
fishy Senior Member Join Date: Aug 2007 Location: Brussels Photos: Gallery Posts: 199 Original Poster	Guess noise keeps us occupied Tripod and long exposures help against noise. So does overexposing a bit (I usually add 0.7 to 1 EV) but not if the subject is not still... But I still wonder at what level noise is controlled BEFORE the image is compressed into jpeg. Is it all sensor construction / wiring, or do some camera's do something clever to the RAW file?

07-22-2008, 02:02 PM	#17
WMBP Veteran Member Join Date: Dec 2006 Location: Dallas, Texas Photos: Gallery Posts: 2,482	Originally posted by jlaubza There is a trick - take multiple shots, minimum three, of the same subject. Image averaging smooths out the noise but does seem to soften edges a bit. Try it and see for yourself. This works great if you can do seven shots of the same subject. You need a sturdy tripod though. Well, you need more than a sturdy tripod. You also need software that can put your three shots together usefully, and even before that, you need a subject that can sit perfectly still for the time it takes to make three exposures. I don't have either. ;-) Will

07-22-2008, 04:57 PM	#18
babelphotos Forum Member Join Date: Oct 2007 Location: Canada Photos: Gallery Posts: 57	Comparing the K10 with the 5D is stupid. The 5D is full frame and 4 times the price. If you want to compare noise on both, take a Canon in the same range of price. The K10 is a midrange....no more 5D is a semipro....Pentax dont have semi pros , wathever people say here. Even the K20 is a midrange camera, a few steps under semipro. But it makes darn good pictures