12-03-2010, 09:07 AM
[quote name='Brightcolours' timestamp='1291295698' post='4700']
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Canon does not manipulate or filter RAW data (besides on the 5D mk II where apparently in an early firmware update pattern read noise was suppressed a bit).
Think of it like this: if you add 100 to every reading you get, do you lose or change any information? No.
If you subtract 100 from every reading, do you lose or change any information? Yes.
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What is added to what is not clear to me but, don't we change the information wheter we add or subtract?
+ this is an advantage in terms of DR...
... I'm not sure if it's tad cleaner but I can see more chorma noise on 60D & D300s at ISO 3200. And I think a print of an image taken at ISO 3200 (or 6400) will be awful for all of them.
Serkan
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Canon does not manipulate or filter RAW data (besides on the 5D mk II where apparently in an early firmware update pattern read noise was suppressed a bit).
Think of it like this: if you add 100 to every reading you get, do you lose or change any information? No.
If you subtract 100 from every reading, do you lose or change any information? Yes.
[/quote]
What is added to what is not clear to me but, don't we change the information wheter we add or subtract?
Quote:...
So, when we look at the dpreview tests from the Canon EOS 60D and the Nikon D7000:
- The Nikon(Pentax) has an advantage in base ISO shadow (read) noise. This is an advantage if you have severely underexposed an image or do one shot HDR.
+ this is an advantage in terms of DR...
Quote:- The Canon has an advantage at higher ISO (ISO 3200 and 6400) with better noise performance. The Images look a tad cleaner and retain more detail. This is an advantage in every high ISO image.
The Canon also has a tad higher pixel resolution, so at high ISO the Canon has the possibility of more detail in print.
... I'm not sure if it's tad cleaner but I can see more chorma noise on 60D & D300s at ISO 3200. And I think a print of an image taken at ISO 3200 (or 6400) will be awful for all of them.
Serkan