Re: [Darktable-users] Stain in low key photos

2014-06-19 Thread Robert William Hutton
On 19/06/14 16:11, Robert William Hutton wrote: > Both the JPG (in geeqie) and the NEF (in darktable 1.4.2) look totally fine > to me. I can't see anything in the > background unless I do something like push down the black point or apply a > crazy tone curve, in which case all I see is > the bla

Re: [Darktable-users] Stain in low key photos

2014-06-19 Thread Robert William Hutton
Both the JPG (in geeqie) and the NEF (in darktable 1.4.2) look totally fine to me. I can't see anything in the background unless I do something like push down the black point or apply a crazy tone curve, in which case all I see is the black or dark blue sheet that you used as your backdrop. Per

[Darktable-users] Stain in low key photos

2014-06-19 Thread Francisco Cribari
I do a lot of low key portraits using a Nikon D800. The RAW files are edited using Daktable on a Linux box (Ubuntu 14.04). Currently, I am running version 1.5+1254~g40b3c8c (from Pascal's PPA). In a number of photos some "stains" show up in the black background of (in the processed JPG file). An e

Re: [Darktable-users] Want to add DT logo on my website

2014-06-19 Thread Simon Spannagel
Hi Guilhem, Glad to hear you like it! Of course you are free to advertise darktable on your website. You can find the svg version of our logo in the repository under data/pixmaps/scalable/darktable.svg Cheers, Simon On 19. Juni 2014 14:08:32 MESZ, Guilhem Ribart wrote: >Hi team > >I'm a fre

[Darktable-users] Want to add DT logo on my website

2014-06-19 Thread Guilhem Ribart
Hi team I'm a french photographer and I use darktable since more than 1 year and I'm very happy to use it for my work! I'd like to add the Darktable logo and a link to your website on my website because I want to help to support this project! My website is www.artetic.net and would like to add th

Re: [Darktable-users] Great offer: Order lens calibrations

2014-06-19 Thread Torsten Bronger
Hallöchen! Pavel writes: > [...] > > There is an entry inside the database file lensfun-0.2.8\data\db\slr- > samyang.xml: > ... > > Samyang > Samyang 14mm f/2.8 ED AS IF UMC > Canon EF > ... > > Can this be used for Rokinon 14mm f/2.8 with Nikon F mount? I think so, yes

Re: [Darktable-users] Updated noise profile for Olympus E-P5

2014-06-19 Thread Christoph Scheurer
Hello, some more thoughts on the recent Olympus µ43 models which presumably all share the same sensor (E-M5, E-M10, E-PL5, E-PL6, E-PM2, E-P5). Looking at the green channel of my E-P5 noise data and the values already contained in DT's noiseprofiles.h for E-M5 and E-PL5 I noticed that my "a" coef

[Darktable-users] Updated noise profile for Olympus E-P5

2014-06-19 Thread Christoph Scheurer
Hello, > below follows the patch for adding noise profiles for the "Olympus E-P5" to > darktable. The non-native reduced ISO 100 as well as ISOs above 12800 were > excluded. Multiple lines with the same ISO value mean multiple images were > used for calibration. Maybe these should be averaged? I h

Re: [Darktable-users] Lens correction for Nikon

2014-06-19 Thread WhizzMan
That is because the D7000 has a crop sensor and correction details for that are different. You can't use a crop sensor image file to come up with correction parameters for a full size sensor, since you don't have the data for the area outside the crop sensor. On Thu, Jun 19, 2014 at 10:22 AM, Stef

[Darktable-users] Lens correction for Nikon

2014-06-19 Thread Stefan Sieben
Hi all,   I am a bit confused about the lens correction function in Darktable 1.4.2. If I use the D7000 the menue shows much more lenses than if I use the D700. For example, for the D7000 there is a correction for the Micro Nikkor 55mm f/2.8 Ais available, for the D700 not. Has Darktable a len