Re: [Darktable-users] Problem with X-Trans RAW files: color artifacts

2015-01-06 Thread Dan Torop
Hi Francisco, Ulrich's advice seems right on! In the newer NEF file I'm still not seeing areas of reds with low enough luminosity to trigger these artifacts. It may just be that the X-Trans image by a particularly fortuitous chance recorded such saturated dark reds, but that's a hard to replicate

Re: [Darktable-users] Problem with X-Trans RAW files: color artifacts

2015-01-05 Thread Dan Torop
171814/_F1C6322.NEF.xmp > > Best, Francisco > > > On Mon, Jan 5, 2015 at 11:22 AM, Dan Torop wrote: >> __ >> Hi Francisco, >> >> Do you have an example NEF file? One with shadows with saturated >> colors would make this most visible. The Nikon sensor cou

Re: [Darktable-users] Problem with X-Trans RAW files: color artifacts

2015-01-05 Thread Dan Torop
images (e.g., Nikon > D800 .NEF). Is there anything specific to X-Trans RAW images here? > > Thanks again. Best, Francisco > > On Mon, Jan 5, 2015 at 12:56 AM, Dan Torop wrote: >> __ >> Hi Francisco, >> >> This is interesting... The trouble seems to come via t

Re: [Darktable-users] Problem with X-Trans RAW files: color artifacts

2015-01-04 Thread Dan Torop
Hi Francisco, This is interesting... The trouble seems to come via the tone curve module's automatic scale chroma setting. (The noise doesn't seem to depend upon the demosaicing algorithm -- it's there with VNG or Markesteijn.) When "scale chroma" is set, each pixel processed has its saturation

Re: [Darktable-users] Support for Fuji X-E1?

2014-06-21 Thread Dan Torop
Hi Mark, There is indeed a branch with X-Trans support: https://github.com/dtorop/darktable/tree/xtrans2. If you're comfortable with Github and compiling your own code, do try it out. You should have good results, but any feedback is most welcome. See http://www.darktable.org/redmine/issues/9951 

Re: [Darktable-users] Fuji xtrans overexposure

2014-05-17 Thread Dan Torop
Hi David, That's great to hear! I do think the non-magenta highlights are thanks to the camera tonal range and the default Fuji basecurve compressing highlights. I'm curious if this cameras produces unusually good highlights? In general the x-trans branch should be getting somewhere stable, thoug