----- Original Message -----
From: "Moose" <olymoose@xxxxxxxxx>
On 12/25/2015 7:26 AM, C.H.Ling wrote:
I'm well aware of the cleaning issue but my piority is color
This is one reason I'm curious to try the High Resolution Mode on the E-M5
II. In moving the sensor and taking eight exposures, it positions a sensel
of each color in each sensel position. So like only the Foveon sensors, it
does not need to interpolate the color for each pixel from surrounding
ones. The color results are spectacular in some of the samples in reviews.
I'm wondering if it might not also give better color results than
re-photograping film with conventional Bayer Array demosaicing.
, D-Max
D-Max may be dealt with by combining different exposures, HDRish.
It won't do much when your scanner doesn't see through the dense area, I
found the exposure setting doesn't work well, it seems only a post process.
Multi-exposure helps a bit in reduce the shadow noise which increase the
D-Max a little but not much.
With camera copy you can really change the expsoure though.
One solution was to make ICC color profiles, using VueScan and an IT8
target. For those films that were/are still available new, I found this a
remarkably effective solution to color. The downside, is for those who use
different films to get different color 'looks'. ICC profiling makes all
films look the same, as it's about accurate reproduction of subject color.
If the problem can be solved with ICC profiling, I'm sure I can do it
without an IT8 target sample. After dealing with thousands of faded
negative, I'm pretty good at color adjustment.
The problem is most of the colors on an image is right only one or two
particular areas are different. When other scanning device came up with
better result then this is a fault with that particular scanning method.
For old films, the color profiles built into VueScan early on are often
helpful, sometimes not. There is also using the color picker in VS and
finding a neutral 'color' in the image to set custom color. With a series
of exposures all in the same light, one need only find one neutral
white/gray/black, and apply the result to all the similar exposures.
All this is helped a great deal by a 'Raw' workflow in VS. I scan all the
film to 'Raw' files. Then I 'scan' the Raw files to make completed TIFFs.
This means trying different settings in the second scan, where all the
adjustments are applied, is almost instant, rather than waiting for
another physical scan.
I have tried film profile in VueScan but found it only make things worse.
For linear faded images, I apply at least three points color adjustment (use
curve), single point won't do well.
VueScan RAW is good, I always use it for playing with different adjustments.
C.H.Ling
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|