Tariq Gibran Offline Upload & Sell: On
|
p.12 #6 · Doesn't look too good according to DxoMark | |
rscheffler wrote:
Not sure about color response. It's an area I need to read up more for a better understanding. Perhaps the perception of better colors are somehow tied to increased dynamic range?
Interesting to me is that after three stops, the dynamic range drops more than about one stop, similar to, though more dramatically than the M9. It could be that past ISO 800 with the M, pushing in post might result in slightly better results.
Yes, I know the increased DR in the M shows subtle color in the highlights that are often lost in the same image from the M9, at least from reviews and comparisons I have seen. Beyond that though, other colors look noticeably better. Look at the greens for instance. In the Huff review, they look artificial with the M9 and really nice with the M. That's the part that I suppose may be down to better color profiles for the M.
Good idea on the second point.
Great info from theSuede in this thread - and quoted below - with regard to DxOMark color measurements:
http://www.fredmiranda.com/forum/topic/1196797/1
Color Depth:
"But basically it is the numerical count of [with statistical accuracy!] separable colors that the sensor can distinguish at the given ISO, given in log2 format (bits)
Color Response:
"Color accuracy on the other hand, is more about matching camera color to human vision color. Here DxO uses metameric indexes as in ISO standard 17321. This uses ONLY linear math to try and match camera raw's to human vision. It is a measurement of how well you can fit the CFA filters to the human eye response, without resorting to spot color corrections.
But spot color corrections are part of almost any camera more advanced than a cell-phone module nowadays, so the SMI should be taken with a big lump of salt. It doesn't tell that much about the camera, and it certainly does not tell if the errors produced are good-natured (easy to correct with spot color corrections) or pure metameric failures that are impossible to correct.
A camera with an SMI of 80 can be WORSE than a camera with an SMI of 75, if the errors are in sensitive colors and if they are incorrigible.
But a camera with SMI80 will almost certainly be a lot better than the camera with SMI60."
edit..I guess the Color Depth number is the most important and here the M is better than the M9.
|