sskoutas wrote:
a serious question for anyone thinking about getting a 5DII or currently shooting with a DsIII... what kind of computing power do you need to effectively use a Lightroom/Photoshop workflow and still be able to manipulate the images from a full day\'s worth of shooting 21.1MP images?
Do we all need 21MP? Not necessarily.
The 5D2 offers two lower RAW resolutions (10MP and 5MP), that keep the DR intact.
At 10MP you can still print at
200ppi => 19x13 inches (~A3)
300ppi => 13x8.5 inches (~A4)
(300ppi being accepted as the pros standard).
Cropping? The 10MP coming from the 21MP downscaled to 10MP RAW image will leave less pixels obviously, but sharper and with less noise (per pixel).
[To get the same quality you have to downsize the 21MP image, so...].
However the 21MP keeps a printing advantage, since downscaling an image loses information that cannot be retrieved even with the best interpolation algorithms. So if A3 is not enough...
Practically?
Twice the MP means
- at least twice the memory usage (depends on processing)
- CF card capacity virtually divided by 2
- twice the storage space (disk)
- twice the time to process the image (more: depends on algos)
- twice the time to transfer the image etc...
So the MP is an important point that has to be considered as well.
Sep 17, 2008 at 09:48 AM
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