RAW to Tiff - quality loss
Hey, my English is very bad, I hope you understand me. 🤭
Question: why change the brightness values when I process a raw file to a Tif (16Bit)
Even if I have a Tif to a new tif processed this behavior.
Ich akzepiere auch deutsche Antworten.
Danke -Thank you. Thomas
Question: why change the brightness values when I process a raw file to a Tif (16Bit)
Even if I have a Tif to a new tif processed this behavior.
Ich akzepiere auch deutsche Antworten.
Danke -Thank you. Thomas
0
-
Maybe can explain the issue more into detail, with a description of your setup. In particular how do you determine the change in brightness? For example, do you review the TIF in Photoshop? 0 -
Similar to my problem of raw to tif convertion, ?
with a shift of black point and modified highlights.
any clue someone ?
viewtopic.php?f=57&t=203820 -
[quote="Bernard28" wrote:
Similar to my problem of raw to tif convertion, ?
with a shift of black point and modified highlights.
any clue someone ?
viewtopic.php?f=57&t=20382
Hallo Bernard,
Exactly, that's my problem.
This happens when I edit the Raw or have not worked.
always at the handover in Tiff.
Nice to see I'm not alone.
The question is? what do you think of Paul.0 -
[quote="Paul_Steunebrink" wrote:
Maybe can explain the issue more into detail, with a description of your setup. In particular how do you determine the change in brightness? For example, do you review the TIF in Photoshop?
Hallo Paul,
((Hallo Bernard,
Exactly, that's my problem.
This happens when I edit the Raw or have not worked.
always at the handover in Tiff.
Nice to see I'm not alone.))
The question is? what do you think of Paul.???
I think we are looking forward to a positive response. Thomas0 -
I just spoke with a friend, who thinks the problem can occur is because the Raw in FotoPro and Tiff in Adobe's color space.
What do you think?0 -
This usually happens with colorspace issues. ProPhoto and AdobeRGB 98 can look washed out. Is your monitor calibrated? Do the exported files look good if exported at sRGB? 0 -
I have the same issue as well......fully calibrated with AdobeRGB 1998 in all programs. The TIF file in C1Pro8 is desaturated once created, but the file in Photoshop is accurate to how I edited the RAW in C1Pro8. If you look at the histogram, C1Pro8 changes the black point even. Definitely an issue with the program. If you Output any file from the TIF file in C1Pro8, it is desaturated also. If you output the same file from Lightroom, it's totally normal. 0 -
[quote="Canon_Shoe" wrote:
I have the same issue as well......fully calibrated with AdobeRGB 1998 in all programs. The TIF file in C1Pro8 is desaturated once created, but the file in Photoshop is accurate to how I edited the RAW in C1Pro8. If you look at the histogram, C1Pro8 changes the black point even. Definitely an issue with the program. If you Output any file from the TIF file in C1Pro8, it is desaturated also. If you output the same file from Lightroom, it's totally normal.
What is your "Rendering Intent" set to in the C1 preferences? Perceptual is the best compromise for soft proofing unless you have a very special workflow.0 -
[quote="CliffCheney" wrote:
This usually happens with colorspace issues. ProPhoto and AdobeRGB 98 can look washed out. Is your monitor calibrated? Do the exported files look good if exported at sRGB?
In my case, the ouput TIFF was in Prophoto color space, and my monitor is well calibrated with a hardware device, so I don't think the difference between the histograms was due to a colorspace issue, although I don't know what is the internal workspace of C1. The intent was perceptual.
My complain was more about tonal response , the black point is shifted and the hilights are modified.0 -
What I am missing in this thread is a key piece of information: what program do you use to review the processed TIFF file that you use to compare to the Capture One preview of the raw file. The best program to use for comparison is Photoshop.
This kind of issues almost always occur on the Windows platform for reasons of color management. Any misalignment of color spaces, rending intents, color engine etc. come more to the surface when you use a larger color space. I am not really a big fan of extreme large spaces like ProPhoto. Unless you know exactly what you are doing and have the best software around, a very large color space can do more harm then good.
If has been suggested earlier in this thread to test with sRGB. If that gives a good comparison between raw and processed image, you can be sure you have a color management issue.0 -
I believe something similar is happening with a raw > jpeg roundtrip and then viewing the result in CO1. Without further edits and only saving the jpeg in photoshop, the resulting jpeg has a shifted blackpoint compared to the raw. The jpeg is brighter in the shadows, the histogram will start e.g. at 2 instead of 0, giving the jpeg a slightly washed out look.
This is on windows 10.
Chris0 -
I submitted a tech case for the same concern and was told it's a known issue and should be corrected with the next update. In the meantime.......I guess it's back to Lightroom 0 -
[quote="CliffCheney" wrote:
[quote="Canon_Shoe" wrote:
I have the same issue as well......fully calibrated with AdobeRGB 1998 in all programs. The TIF file in C1Pro8 is desaturated once created, but the file in Photoshop is accurate to how I edited the RAW in C1Pro8. If you look at the histogram, C1Pro8 changes the black point even. Definitely an issue with the program. If you Output any file from the TIF file in C1Pro8, it is desaturated also. If you output the same file from Lightroom, it's totally normal.
What is your "Rendering Intent" set to in the C1 preferences? Perceptual is the best compromise for soft proofing unless you have a very special workflow.
It was set to perceptual. I've changed it to a few others and the results are still the same. I submitted a case and I guess it is a known issue to Capture One 80 -
[quote="Paul_Steunebrink" wrote:
What I am missing in this thread is a key piece of information: what program do you use to review the processed TIFF file that you use to compare to the Capture One preview of the raw file. The best program to use for comparison is Photoshop.
This kind of issues almost always occur on the Windows platform for reasons of color management. Any misalignment of color spaces, rending intents, color engine etc. come more to the surface when you use a larger color space. I am not really a big fan of extreme large spaces like ProPhoto. Unless you know exactly what you are doing and have the best software around, a very large color space can do more harm then good.
If has been suggested earlier in this thread to test with sRGB. If that gives a good comparison between raw and processed image, you can be sure you have a color management issue.
In my case, I am using C1 to review the processed Tiff, as you can see in the image displaying the raw and tiff histograms.
I know windows' color management can be 'difficult', but I am only using color managed programs, and there the tiff histogram is the same as the one in C1.
It seems the problem is known to Phase One ? That would be a good news, and even better would be a statement from them.0 -
Hi Bernard28,
Sorry I missed the image, I am unable to locate it in the thread.
There seems to be an issue with displaying processed (TIFF) files in CO8. I am not aware about the status of acknowledgement by Phase One. To get a quote, contact support directly.0 -
[quote="CliffCheney" wrote:
This usually happens with colorspace issues. ProPhoto and AdobeRGB 98 can look washed out. Is your monitor calibrated? Do the exported files look good if exported at sRGB?
Hallo Clif
I only work in Adobe and have an Eizo CX24 with Navigator 6,
Thomas0 -
[quote="Paul_Steunebrink" wrote:
Hi Bernard28,
Sorry I missed the image, I am unable to locate it in the thread.
There seems to be an issue with displaying processed (TIFF) files in CO8. I am not aware about the status of acknowledgement by Phase One. To get a quote, contact support directly.
Hi Paul,
The image is not directly in this thread, but one of my quotes is referring to another thread.
Would be interested to know what you think about it.
I contacted support but got no answer.
Bernard0 -
Excuse for bad English, I hopes everybody understand what I mean.
I have done the following to compare,
created from the RAW with the program C1 + PS CS6 + Capture NX-D a Tiff (without editing).
This open Tiff in each program and saved as TIFF in every program.
So I have 6 Tiff files from any program.
The biggest differences in the histogram were the Tiff of C1.
When I compare the 6 files in PS, I see no difference in the histogram of the files that I have bestowed in PS. The same with the files in NX-D
The biggest differences are always in C1.
What is that?0 -
Just a reminder of my prvious thread .......
I have noticed a big difference between the display of a RAW (NEF) in C1, and the display of the generated TIFF, in C1 or Picture Window Pro.
I have tried a lot of different combinations of the process parameters : Tiff/Jpeg, 16/8 bits , Zip/No compress , Adobe RGB ICC/Prophoto ICC , Saturation/Perceptual intent, 0.10 %/0.00 % Highlights clipping,....
but the highlights in the tiff are always different (clipped at a lower value it seems) compared to the raw.
Colors are also a bit different.
The display and the histogram of the Tiff are the same in C1 and Picture Window Pro, and I am 100% sure that PWPro handles the ICC profile, 16 bgits, etc.. correctly.
Please have a look at the 2 histograms below :
Tiff generated with : 16 bits, Prophoto ICC, Preceptual intent, 0.00% highlights clipping :
http://www.bleverd-photo.net/Panos_divers/Histo-Raw.jpg
http://www.bleverd-photo.net/Panos_divers/Histo-Tiff.jpg
C1 8.3.1 , Windows 7 , Nikon D810
Bernard0 -
I have the same issue Bernard.......The image appears washed out and flat and the histogram changes. I sent two files to Capture One Tech Support and was told this is a known issue and should be fixed with the next update. Until that update, I guess I'm back to Lightroom. Seems like quite an issue for a program of this caliber 0 -
I have just tried this export to a 16Bit Tiff from a Canon file and cannot see a problem.
Is this NEF file specific?
Grant0 -
[quote="SFA" wrote:
I have just tried this export to a 16Bit Tiff from a Canon file and cannot see a problem.
Is this NEF file specific?
Grant
Hi Grant, I too have an issue with TIF exports from CR2 files from the 5DS R but not with exports from 5D Mk III (CR2) images and I guess I have simply put it down to the fact that the 5DS R is too new. Don.0 -
[quote="AiDon" wrote:
[quote="SFA" wrote:
I have just tried this export to a 16Bit Tiff from a Canon file and cannot see a problem.
Is this NEF file specific?
Grant
Hi Grant, I too have an issue with TIF exports from CR2 files from the 5DS R but not with exports from 5D Mk III (CR2) images and I guess I have simply put it down to the fact that the 5DS R is too new. Don.
Hi Don,
Interesting.
I wonder if the Preliminary nature of the current support is a factor there? However I can't think of an obvious reason why that would be when taking a pre-edited file and creating a Tiff from - except of course that the whole process would need to be repeated perhaps taking in other factors when re-calculating for output.
My cameras are all old enough that they are well established in the C1 application so that probably explains why I do not see the problem.
Thanks for the information.
Grant0 -
I have had the same problem. Not only am I noting a shift in the histogram reflected in highlights and black point as other metioned, but also in colors and sharpness of the image. There is a bit of a yellow cast to black and whites and all images are softer. In one example, stars in an astrophotography example disappeared from the output.
I too have tried multiple output types, adjustments to both contrast and noise reduction, and nothing has resolved the issue.
I was told widnows 10 is not supported so no fix in sight for a few months, but others are seeing this on other operating systems?
My setup is also fully calibrated with DNG output from a Pentax K3.0 -
Hello, to everybody.
if One of you also has the problem if a Tiff is generated by a Tiff.
With me are also big differences. Thomas0 -
[quote="Canon_Shoe" wrote:
I have the same issue Bernard.......The image appears washed out and flat and the histogram changes. I sent two files to Capture One Tech Support and was told this is a known issue and should be fixed with the next update. Until that update, I guess I'm back to Lightroom. Seems like quite an issue for a program of this caliber
I agree, and if it's a known issue phase one should publish a statement.
For the moment I am back to LR as well, I am a bit disappointed to find such an issue after just a few days of using C1.
Bernard0 -
Hi,
For me 5DS R images processed in Lightroom exhibit the same symptoms of crushed blacks when creating a TIFF file from a .CR2 that doesn't exist for other Canon cameras. So it leads me to believe there is something about the 5DS/5DS R raw files that hasn't been discovered yet.
Fortunately though the RAW conversion by Capture One Pro (and I understand it is preliminary) of the 5DS R raw's is so much better than the abysmal conversion done in ACR.
Therefore for me there isn't an option to use Lightroom as both C1 and LR exhibit the same symptoms generating a TIFF but the C1 RAW conversion is so much better.
Don.0
投稿コメントは受け付けていません。
コメント
27件のコメント