Originally posted by Pentaxtic
I was wondering with all the nice pictures that are put up, what would be the differences if you took the picture with a Canon or Nikon
dslr with the equivalent lens?
...... From what I know, Pentax offers more realistic colors. Canon goes funny with greens. Nikon has a flat image?!?
If you took a series of photos with high-end or middle-to-high end cameras from each brand (say, a K10D/K20D; Canon 40D; Nikon D80 or D300), if the light was good, if you were using good lenses on each of the cameras, and if you knew what you were doing, the differences in image quality would be negligible. You might be able to find slight differences in the files as first viewed on your computer, if you looked hard enough; but the raw files should all have pretty much the same info in them and a competent user of, say, Lightroom or whatever, should be able to get a great photo from raw files coming from any one of the brands.
And if you were comparing processed photos (no peeking at raw originals), I bet $10 that you could slip into that competition some photos taken with high-end compact cameras without the difference being obvious: for example, the Leica D-LUX 3, a Panasonic Lumix DMC-TZ5K, or a Canon Powershot G9. NOTE WELL my conditions: good light, and a photographer who has more than a clue.
In optimal conditions, anyway, what distinguishes camera bodies isn't
IQ, really. It's ergonomics, build quality, weather sealing, GPS or wi-fi capability, etc. When conditions aren't optimal, other differences appear: processing speed and
fps, ISO range, noise management in high ISO/low light photos, focusing speed in low light, etc. And of course the brands are distinguished in very important ways by what's
not in the body - availability of lenses and other peripherals like flash units, support, etc.
It's worth noting that these facts hold true not just between brands, but also between models in the same brand. If conditions are optimal, the difference in image quality between a shot taken by the K10D and another shot taken by the K20D are going to be trivial. After looking at thousands of shots taken by both cameras, I still can't usually tell which camera I used unless I check the EXIF info. On the other hand, I can sometimes tell which
lens I used for a particular shot - and when I've done comparative lens tests (always in optimal shooting conditions), it's sometimes hard, but sometimes easy to see differences between shots taken with different lenses.
Will