Re: [darktable-user] Imported images are always way too dark
Hi David, the information I have is that manufacturers set the exposure balance to slightly underexpose, with most doing this to -0.3 EV. However, photographers shooting in RAW, who don't care about the SOOC image, will push the histogram as far to the right as possible to avoid clipping and to reduce noise. I tend to be a bit conservative on this as when the histogram nears clipping the saturation is reduced. Aurelien explains this in some of his videos. When I teach my photography students about histograms I tell them that if they shoot in JPG (SOOC), then the histogram only confirms the bleeding obvious that the picture is under or over exposed. However, I then show an image and histogram of a picture taken in the middle of an Indian desert of a fort with lots of haze. The picture looks washed out and over exposed. I ask the students to put their hands up if they feel the image is underexposed. Most students do not put their hands up, I can not remember any student putting their hand up. But, then I raise my hand and say yes it is. I then explain that the histogram is placed very central with plenty of room to move to the right. There is no clipping and the histogram is very narrow due to the atmospheric haze. I open the image in editing software and use options such as levels to stretch the histogram wider and then adjust the gamma and show how well the image can be processed to lift the contrast and fix the exposure. I might agree with you that I give camera manufacturers too much credit that they want to protect the highlights. But, one of the challenges we face is having people realise that the SOOC image is not necessarily how the image should look or how it can best look. It is just the manufacturer's algorithm producing a version of the scene. Cheers On Tue, 18 Jan 2022 at 13:29, David Vincent-Jones wrote: > I am not sure that camera manufacturers have too much interest in > protecting the highlights. However you set your meter .. for spot, local or > whole image .. the meter (if you are using it solely) is simply going to > provide information assuming that the metered area is pivoted around 'mid > gray' (18% black). Whether the histogram (data range) is broad or narrow, > and the position of the extremes, is totally another problem. > On 2022-01-17 21:18, Terry Pinfold wrote: > > Hi All, > camera manufacturers actually set the camera to underexpose a little > bit because this protects the highlights and produces a pleasing result. > However, when shooting in RAW you want to push the exposure towards the > right of the histogram without clipping. The picture may look over exposed > bt if the highlights are not clipped then DT can correct the exposure and > the noise is reduced compared to the SOOC JPG. It is a little more effort > but gives the best picture. > > On Mon, 17 Jan 2022 at 21:14, Frank > wrote: > > > On Thu, 13 Jan 2022 at 01:42, bwh vanBeest > wrote: > > > Thanks for all the reactions to my posting. I initially thought something > was wrong with my camera-DT-combination, but now I learned otherwise. I > have now learned what to do. Still, somehow it is unsatisfactory that a > picture of which you know is exposed correctly is initially displayed in DT > as underexposed. > > Regards > Bertwim > > What Darktable is actually showing you is that your images are underexposed, > and you can expose farther to the right and still have highlights that are > not blown. You will come to appreciate this if you have the patience. You > cannot trust your in camera histogram for exposure, this is a fact. > > > I have edited the exposure preset to apply +2 stops on import, this is about > right for my Olympus cameras > > > > darktable user mailing list to unsubscribe send a mail > todarktable-user+unsubscr...@lists.darktable.org > > -- > > > darktable user mailing list > to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org > > > > darktable user mailing list to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > -- darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
I am not sure that camera manufacturers have too much interest in protecting the highlights. However you set your meter .. for spot, local or whole image .. the meter (if you are using it solely) is simply going to provide information assuming that the metered area is pivoted around 'mid gray' (18% black). Whether the histogram (data range) is broad or narrow, and the position of the extremes, is totally another problem. On 2022-01-17 21:18, Terry Pinfold wrote: Hi All, camera manufacturers actually set the camera to underexpose a little bit because this protects the highlights and produces a pleasing result. However, when shooting in RAW you want to push the exposure towards the right of the histogram without clipping. The picture may look over exposed bt if the highlights are not clipped then DT can correct the exposure and the noise is reduced compared to the SOOC JPG. It is a little more effort but gives the best picture. On Mon, 17 Jan 2022 at 21:14, Frank wrote: On Thu, 13 Jan 2022 at 01:42, bwh vanBeest wrote: Thanks for all the reactions to my posting. I initially thought something was wrong with my camera-DT-combination, but now I learned otherwise. I have now learned what to do. Still, somehow it is unsatisfactory that a picture of which you know is exposed correctly is initially displayed in DT as underexposed. Regards Bertwim What Darktable is actually showing you is that your images are underexposed, and you can expose farther to the right and still have highlights that are not blown. You will come to appreciate this if you have the patience. You cannot trust your in camera histogram for exposure, this is a fact. I have edited the exposure preset to apply +2 stops on import, this is about right for my Olympus cameras darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org -- darktable user mailing list to unsubscribe send a mail todarktable-user+unsubscr...@lists.darktable.org darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
Hi All, camera manufacturers actually set the camera to underexpose a little bit because this protects the highlights and produces a pleasing result. However, when shooting in RAW you want to push the exposure towards the right of the histogram without clipping. The picture may look over exposed bt if the highlights are not clipped then DT can correct the exposure and the noise is reduced compared to the SOOC JPG. It is a little more effort but gives the best picture. On Mon, 17 Jan 2022 at 21:14, Frank wrote: > On Thu, 13 Jan 2022 at 01:42, bwh vanBeest wrote: > > > Thanks for all the reactions to my posting. I initially thought something > > was wrong with my camera-DT-combination, but now I learned otherwise. I > > have now learned what to do. Still, somehow it is unsatisfactory that a > > picture of which you know is exposed correctly is initially displayed in DT > > as underexposed. > > > > Regards > > Bertwim > > What Darktable is actually showing you is that your images are underexposed, > and you can expose farther to the right and still have highlights that are > not blown. You will come to appreciate this if you have the patience. You > cannot trust your in camera histogram for exposure, this is a fact. > > > I have edited the exposure preset to apply +2 stops on import, this is about > right for my Olympus cameras > > > > darktable user mailing list to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > -- darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
On Thu, 13 Jan 2022 at 01:42, bwh vanBeest wrote: > Thanks for all the reactions to my posting. I initially thought something > was wrong with my camera-DT-combination, but now I learned otherwise. I > have now learned what to do. Still, somehow it is unsatisfactory that a > picture of which you know is exposed correctly is initially displayed in DT > as underexposed. > > Regards > Bertwim What Darktable is actually showing you is that your images are underexposed, and you can expose farther to the right and still have highlights that are not blown. You will come to appreciate this if you have the patience. You cannot trust your in camera histogram for exposure, this is a fact. I have edited the exposure preset to apply +2 stops on import, this is about right for my Olympus cameras darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
HI Bertwin, the very benefit and dare I say joy of working a RAW file is that you are in charge of the whole process. One of my first adjustments that that I need to do is to the exposure slider to give the desired starting point. I then go to filmic and set the relative white and black exposure sliders to get the desired effect. BTW, I find the eyedroppers often , but not always, do a great job of setting this for me. Please don't see this step of having to adjust the exposure as a flaw. Rather see it as control. I am surprised that your camera is so far off from the JPG. I process images from many cameras including my nikon D7100 and I don't see this issue. However, one little quirk is that I bracket my exposures most of the time and usually want to process the brightest exposure without clipping of the highlights (to reduce noise and increase shadow detail), but the scene referred processing automatically counteracts my in camera exposure compensation. This makes the three images look nearly identical and forces me to look at the exposure settings to work out which is which. I feel if I used camera compensation, I had a reason for it and want it retained. DT takes some getting used to, because it is not trying to simply be a free version of Lightroom or any other program, but instead is a total paradigm shift in processing images. Also learn how to create styles in DT. By creating a style you can apply any number of corrections to the image to get to the initial starting point for processing. This may include in your case an exposure adjustment, denoising, sharpening, lens correction or whatever you want. You can create different styles for landscapes in sunshine, landscapes with overcast days, portraits, high ISO images or whatever suits your needs. This is similar to picture styles in the camera, but they are your artistic creation. Without having one of your picture files to open in DT, I am unsure why your images are so dark as my Nikon D7100 images and all the other cameras I use do not suffer this. Enjoy learning DT. It is worth the effort. Watch some videos and bookmark the user guide for reference when learning the different modules. On Thu, 13 Jan 2022 at 01:42, bwh vanBeest wrote: > Thanks for all the reactions to my posting. I initially thought something > was wrong with my camera-DT-combination, but now I learned otherwise. I > have now learned what to do. Still, somehow it is unsatisfactory that a > picture of which you know is exposed correctly is initially displayed in DT > as underexposed. > > Regards > Bertwim > > On 12/01/2022 12:41 PM Remco Viëtor wrote: > > > > > > On mercredi 12 janvier 2022 12:08:08 CET Frank J. wrote: > > > Am 10.01.22 um 22:12 schrieb bwh vanBeest: > > > > Hi, > > > > When I import a series of images straight from the camera (Nikon > > > > D850, Nikon nef format) in Darktable (scene-referred workflow), the > > > > images invariably show up as way too dark, as if they are > > > > underexposed. The histogram shows a big unexposed part on the > > > > highlights. I am pretty sure though that when I took the pictures the > > > > exposure is about right (according to the camera histogram). The > > > > camera-generated jpg is also ok. > > > > What can be the cause of this and what can I do about it? > > > > > > > > Kind Regards, > > > > Bertwim > > > > > > Same effect here. > > > > > > I use Olympus-cameras, RAW only, correction +/- 0 EV in the Camera. > > > > > > After importing in DT the default in module "exposure" is "+0.5 EV" but > > > this is too dark for nearly all pictures. > > > > > > I need to use a correction between +1.5 and +2.5 EV for the best look. > > > > > > This is not new in DT 3.8 but in 3.6 (or 3.4?) with the change to > > > scene-referred workflow. > > > > > > I never compared with camera JPG. > > > > > > Frank > > You have two effects here: one is the exposure of the middle gray parts > of > > your image (the one that "exposure" works on), the other is the tone > curve > > applied by the camera. That tonecurve can add quite a bit of midtone > contrast, > > limiting the room available for shadows and highlights, and also > increase the > > apparent exposure a bit (to "protect" the shadows). That tone curve is > > replaced by filmic, which tends to be softer/more delicate with the > shadows > > and the highlights. > > > > The correction you need to apply in exposure seems to depend on the > camera > > brand, I find I need to add about 1-1.5 EV for my Sony. > > > > Remco > > > > > > > > > darktable user mailing list > > to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > > > darktable user mailing list > to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > >
Re: [darktable-user] Imported images are always way too dark
* bwh vanBeest [01-12-22 09:43]: > Thanks for all the reactions to my posting. I initially thought something was > wrong with my camera-DT-combination, but now I learned otherwise. I have now > learned what to do. Still, somehow it is unsatisfactory that a picture of > which you know is exposed correctly is initially displayed in DT as > underexposed. > > Regards > Bertwim > > On 12/01/2022 12:41 PM Remco Viëtor wrote: > > > > > > On mercredi 12 janvier 2022 12:08:08 CET Frank J. wrote: > > > Am 10.01.22 um 22:12 schrieb bwh vanBeest: > > > > Hi, > > > > When I import a series of images straight from the camera (Nikon > > > > D850, Nikon nef format) in Darktable (scene-referred workflow), the > > > > images invariably show up as way too dark, as if they are > > > > underexposed. The histogram shows a big unexposed part on the > > > > highlights. I am pretty sure though that when I took the pictures the > > > > exposure is about right (according to the camera histogram). The > > > > camera-generated jpg is also ok. > > > > What can be the cause of this and what can I do about it? > > > > > > > > Kind Regards, > > > > Bertwim > > > > > > Same effect here. > > > > > > I use Olympus-cameras, RAW only, correction +/- 0 EV in the Camera. > > > > > > After importing in DT the default in module "exposure" is "+0.5 EV" but > > > this is too dark for nearly all pictures. > > > > > > I need to use a correction between +1.5 and +2.5 EV for the best look. > > > > > > This is not new in DT 3.8 but in 3.6 (or 3.4?) with the change to > > > scene-referred workflow. > > > > > > I never compared with camera JPG. > > > > > > Frank > > You have two effects here: one is the exposure of the middle gray parts of > > your image (the one that "exposure" works on), the other is the tone curve > > applied by the camera. That tonecurve can add quite a bit of midtone > > contrast, > > limiting the room available for shadows and highlights, and also increase > > the > > apparent exposure a bit (to "protect" the shadows). That tone curve is > > replaced by filmic, which tends to be softer/more delicate with the shadows > > and the highlights. > > > > The correction you need to apply in exposure seems to depend on the camera > > brand, I find I need to add about 1-1.5 EV for my Sony. > > > > Remco > > > > > > > > darktable user mailing list > > to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org > > darktable user mailing list > to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org it is a simple adjustment to make it very close and not to have to worry about it and to find it unpleasant and have to complain about it. set up the automagic adjustment quit worrying about it. and all of live is full of these situations, many which cost you monies that darktable does not. smile and be happy. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet oftc What sort of day was it? A day like all days, filled with those events that alter and illuminate our times... darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
Thanks for all the reactions to my posting. I initially thought something was wrong with my camera-DT-combination, but now I learned otherwise. I have now learned what to do. Still, somehow it is unsatisfactory that a picture of which you know is exposed correctly is initially displayed in DT as underexposed. Regards Bertwim > On 12/01/2022 12:41 PM Remco Viëtor wrote: > > > On mercredi 12 janvier 2022 12:08:08 CET Frank J. wrote: > > Am 10.01.22 um 22:12 schrieb bwh vanBeest: > > > Hi, > > > When I import a series of images straight from the camera (Nikon > > > D850, Nikon nef format) in Darktable (scene-referred workflow), the > > > images invariably show up as way too dark, as if they are > > > underexposed. The histogram shows a big unexposed part on the > > > highlights. I am pretty sure though that when I took the pictures the > > > exposure is about right (according to the camera histogram). The > > > camera-generated jpg is also ok. > > > What can be the cause of this and what can I do about it? > > > > > > Kind Regards, > > > Bertwim > > > > Same effect here. > > > > I use Olympus-cameras, RAW only, correction +/- 0 EV in the Camera. > > > > After importing in DT the default in module "exposure" is "+0.5 EV" but > > this is too dark for nearly all pictures. > > > > I need to use a correction between +1.5 and +2.5 EV for the best look. > > > > This is not new in DT 3.8 but in 3.6 (or 3.4?) with the change to > > scene-referred workflow. > > > > I never compared with camera JPG. > > > > Frank > You have two effects here: one is the exposure of the middle gray parts of > your image (the one that "exposure" works on), the other is the tone curve > applied by the camera. That tonecurve can add quite a bit of midtone > contrast, > limiting the room available for shadows and highlights, and also increase the > apparent exposure a bit (to "protect" the shadows). That tone curve is > replaced by filmic, which tends to be softer/more delicate with the shadows > and the highlights. > > The correction you need to apply in exposure seems to depend on the camera > brand, I find I need to add about 1-1.5 EV for my Sony. > > Remco > > > > darktable user mailing list > to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
On mercredi 12 janvier 2022 12:08:08 CET Frank J. wrote: > Am 10.01.22 um 22:12 schrieb bwh vanBeest: > > Hi, > > When I import a series of images straight from the camera (Nikon > > D850, Nikon nef format) in Darktable (scene-referred workflow), the > > images invariably show up as way too dark, as if they are > > underexposed. The histogram shows a big unexposed part on the > > highlights. I am pretty sure though that when I took the pictures the > > exposure is about right (according to the camera histogram). The > > camera-generated jpg is also ok. > > What can be the cause of this and what can I do about it? > > > > Kind Regards, > > Bertwim > > Same effect here. > > I use Olympus-cameras, RAW only, correction +/- 0 EV in the Camera. > > After importing in DT the default in module "exposure" is "+0.5 EV" but > this is too dark for nearly all pictures. > > I need to use a correction between +1.5 and +2.5 EV for the best look. > > This is not new in DT 3.8 but in 3.6 (or 3.4?) with the change to > scene-referred workflow. > > I never compared with camera JPG. > > Frank You have two effects here: one is the exposure of the middle gray parts of your image (the one that "exposure" works on), the other is the tone curve applied by the camera. That tonecurve can add quite a bit of midtone contrast, limiting the room available for shadows and highlights, and also increase the apparent exposure a bit (to "protect" the shadows). That tone curve is replaced by filmic, which tends to be softer/more delicate with the shadows and the highlights. The correction you need to apply in exposure seems to depend on the camera brand, I find I need to add about 1-1.5 EV for my Sony. Remco darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
Am 10.01.22 um 22:12 schrieb bwh vanBeest: Hi, When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? Kind Regards, Bertwim Same effect here. I use Olympus-cameras, RAW only, correction +/- 0 EV in the Camera. After importing in DT the default in module "exposure" is "+0.5 EV" but this is too dark for nearly all pictures. I need to use a correction between +1.5 and +2.5 EV for the best look. This is not new in DT 3.8 but in 3.6 (or 3.4?) with the change to scene-referred workflow. I never compared with camera JPG. Frank darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
* Bernhard [01-11-22 02:22]: > > > Patrick Shanahan schrieb am 10.01.22 um 22:50: > > * Bernhard [01-10-22 16:30]: > > > > > > bwh vanBeest schrieb am 10.01.22 um 22:12: > > > > When I import a series of images straight from the camera (Nikon D850, > > > > Nikon nef format) in Darktable (scene-referred workflow), the images > > > > invariably show up as way too dark, as if they are underexposed. The > > > > histogram shows a big unexposed part on the highlights. I am pretty > > > > sure though that when I took the pictures the exposure is about right > > > > (according to the camera histogram). The camera-generated jpg is also > > > > ok. > > > > What can be the cause of this and what can I do about it? > > > The histogramm always is created from the jpg, not the RAW (nef in your > > > case). > > > So the deviation between the RAW shown in darktable and the JPG depends > > > on your camera settings > > > (picture controls: > > > https://onlinemanual.nikonimglib.com/d850/en/13_image_enhancement_01.html) > > > It's recommended to use FL to minimize deviation between RAW and JPG ... > > > > > what is "FL". remember that almost all of the "picture control" camera > > menu items are not in the raw image but in the generated jpg only. > Just have a look at the manual page I referenced to ... > And yes, but we are disussing deviations between image AND histogramm between > JPG and RAW!!! if I had found "FL", it would not have been necessary to ask. I did not, but I am trying to help you. is it not to your benefit to help me to help you. does "FL" refer to Flat? Nikon processes in camera the jpg file applying the prettiness settings you selected in the camera menu settings, ie: Flat. the raw is just that, the RAW readings from the camera sensor, which you then process with dt to achieve a result acceptable to you in the same manner that Nikon edits the same raw to provide you the jpg output. If you are more satisfied with the in-camera jpg, why are you bothering with dt and why are you shooting raw? -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet oftc What sort of day was it? A day like all days, filled with those events that alter and illuminate our times... darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
besides that: I have a constellation here (text in German, but the images may speak for themselves): https://www.bilddateien.de/blog/2021-06-06-raw-oder-jpeg.html#belichtungskorrektur 38 <https://www.bilddateien.de/blog/2021-06-06-raw-oder-jpeg.html#belichtungskorrektur> The first image of that blue tit is the in-camera-jpg accompanied by it’s histogramm. You see it’s ETTR and the brightest parts of white parts of the face are really white. This is with exposure correction of -1EV When I import the same image, but the RAW into darktable, I get the second histogram and have room to improvement of the image. This clearly shows that “in the field” it’s often hard to do things right in terms of correct exposure of the RAW only based on the information you have out of the JPEG. BTW: same camera -- regards Bernhard https://www.bilddateien.de Terry Pinfold schrieb am 10.01.22 um 22:39: Hi Bertwin, the scene referred workflow applies a counter adjustment to your in-camera exposure value adjustment. If you look in the exposure module you will see a box ticked by default for ' Compensate camera exposure'. This may be the cause of your issue. I use exposure bracketing most of the time and DT will open all my bracketed images looking the same rather than dark or light or normal. I am not sure of the logic of this default behaviour as I usually want to keep the exposure compensation from the camera. If this problem doesn't solve the issue just move the exposure slider along a little to get the look you want. DT takes a bit of learning but is worth the effort to learn. I prefer it so much over other programs such as LR. Let me know how you get along with this issue. -- *From:* bwh vanBeest *Sent:* Tuesday, 11 January 2022 8:12 AM *To:* darktable-user@lists.darktable.org *Subject:* [darktable-user] Imported images are always way too dark Hi, When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? Kind Regards, Bertwim darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org This email is confidential, and is for the intended recipient only. Access, disclosure, copying, distribution, or reliance on any of it by anyone outside the intended recipient organisation is prohibited and may be a criminal offence. Please delete if obtained in error and email confirmation to the sender. The views expressed in this email are not necessarily the views of the University of Tasmania, unless clearly intended otherwise. darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.or
Re: [darktable-user] Imported images are always way too dark
Patrick Shanahan schrieb am 10.01.22 um 22:50: * Bernhard [01-10-22 16:30]: bwh vanBeest schrieb am 10.01.22 um 22:12: When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? The histogramm always is created from the jpg, not the RAW (nef in your case). So the deviation between the RAW shown in darktable and the JPG depends on your camera settings (picture controls: https://onlinemanual.nikonimglib.com/d850/en/13_image_enhancement_01.html) It's recommended to use FL to minimize deviation between RAW and JPG ... what is "FL". remember that almost all of the "picture control" camera menu items are not in the raw image but in the generated jpg only. Just have a look at the manual page I referenced to ... And yes, but we are disussing deviations between image AND histogramm between JPG and RAW!!! -- regards Bernhard https://www.bilddateien.de darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
* Bernhard [01-10-22 16:30]: > > > bwh vanBeest schrieb am 10.01.22 um 22:12: > > When I import a series of images straight from the camera (Nikon D850, > > Nikon nef format) in Darktable (scene-referred workflow), the images > > invariably show up as way too dark, as if they are underexposed. The > > histogram shows a big unexposed part on the highlights. I am pretty sure > > though that when I took the pictures the exposure is about right (according > > to the camera histogram). The camera-generated jpg is also ok. > > What can be the cause of this and what can I do about it? > The histogramm always is created from the jpg, not the RAW (nef in your case). > So the deviation between the RAW shown in darktable and the JPG depends on > your camera settings > (picture controls: > https://onlinemanual.nikonimglib.com/d850/en/13_image_enhancement_01.html) > It's recommended to use FL to minimize deviation between RAW and JPG ... > what is "FL". remember that almost all of the "picture control" camera menu items are not in the raw image but in the generated jpg only. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet oftc What sort of day was it? A day like all days, filled with those events that alter and illuminate our times... darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
Hi Bertwin, the scene referred workflow applies a counter adjustment to your in-camera exposure value adjustment. If you look in the exposure module you will see a box ticked by default for ' Compensate camera exposure'. This may be the cause of your issue. I use exposure bracketing most of the time and DT will open all my bracketed images looking the same rather than dark or light or normal. I am not sure of the logic of this default behaviour as I usually want to keep the exposure compensation from the camera. If this problem doesn't solve the issue just move the exposure slider along a little to get the look you want. DT takes a bit of learning but is worth the effort to learn. I prefer it so much over other programs such as LR. Let me know how you get along with this issue. From: bwh vanBeest Sent: Tuesday, 11 January 2022 8:12 AM To: darktable-user@lists.darktable.org Subject: [darktable-user] Imported images are always way too dark Hi, When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? Kind Regards, Bertwim darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org This email is confidential, and is for the intended recipient only. Access, disclosure, copying, distribution, or reliance on any of it by anyone outside the intended recipient organisation is prohibited and may be a criminal offence. Please delete if obtained in error and email confirmation to the sender. The views expressed in this email are not necessarily the views of the University of Tasmania, unless clearly intended otherwise. darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
* bwh vanBeest [01-10-22 16:22]: > Hi, > > When I import a series of images straight from the camera (Nikon D850, Nikon > nef format) in Darktable (scene-referred workflow), the images invariably > show up as way too dark, as if they are underexposed. The histogram shows a > big unexposed part on the highlights. I am pretty sure though that when I > took the pictures the exposure is about right (according to the camera > histogram). The camera-generated jpg is also ok. > What can be the cause of this and what can I do about it? set a positive exposure preset on my D850, I have 1.25ev I still adjust but it is ballpark for the majority of my shots, high school soccer. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet oftc What sort of day was it? A day like all days, filled with those events that alter and illuminate our times... darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Imported images are always way too dark
bwh vanBeest schrieb am 10.01.22 um 22:12: When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? The histogramm always is created from the jpg, not the RAW (nef in your case). So the deviation between the RAW shown in darktable and the JPG depends on your camera settings (picture controls: https://onlinemanual.nikonimglib.com/d850/en/13_image_enhancement_01.html) It's recommended to use FL to minimize deviation between RAW and JPG ... -- regards Bernhard https://www.bilddateien.de darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
[darktable-user] Imported images are always way too dark
Hi, When I import a series of images straight from the camera (Nikon D850, Nikon nef format) in Darktable (scene-referred workflow), the images invariably show up as way too dark, as if they are underexposed. The histogram shows a big unexposed part on the highlights. I am pretty sure though that when I took the pictures the exposure is about right (according to the camera histogram). The camera-generated jpg is also ok. What can be the cause of this and what can I do about it? Kind Regards, Bertwim darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
