Raw processing questions

nbagno

Jr. Member

Posts: 74

Raw processing questions

« on: September 10, 2009, 04:42:23 AM »

1.   Resetting raw adjustments – Once I have right clicked on a thumbnail and selected Refine Raw Exposure, my understanding is that the raw image is processed using my cameras profile. How do I reset that adjustment? Not talking about the right click and reset adjustment function. Additionally, if I don’t select Refine Raw Exposure but simply drag to the print queue, I notice that the camera profile is added to the print queue path name, does that mean the camera profile was used? If so, was the exposure set?

2.   Pre processed files by another program – If I opened a raw file in Lightroom, and later opened the file in Qimage studio, will it now be double processed?

3.   If I send a picture from Qimage to CS4, AdobeBridge automaticallly opens. Does that mean that Bridge is using camera raw and assigning its own profile to the raw file?


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Fred A

Forum Superhero

Posts: 5644

Re: Raw processing questions

« Reply #1 on: September 10, 2009, 09:36:30 AM »

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If I send a picture from Qimage to CS4, AdobeBridge automaticallly opens. Does that mean that Bridge is using camera raw and assigning its own profile to the raw file?

If you purchased or made a camera profile and use it when Qimage Studio processes your raw image, it only means that Qimage opened that image in the correct colorspace made for your camera. That profile is *not* embedded in the image. Therefore placing that image (original raw/unaltered or processed) into a different application, will have no effect on how that application handles the image.
You can, if you wish, do a Profile to Profile conversion (which is very easy in Qimage) and cause that camera profile to be embedded. This will be a conversion to a TIFF or JPG with the profile embedded.
Then if you use that TIFF, PS will open it in your camera profile space.

Quote

Pre processed files by another program – If I opened a raw file in Lightroom, and later opened the file in Qimage studio, will it now be double processed?

Processing Raw files in another program before you place the raw file into Qimage will be the same as above. As you would bring a pre processed raw file from LR to Qimage, Qimage would not see your changes, So it is when you process in LR and then move that image to Qimage, Qimage will not see what you did in LR.
In either case, you would need to convert your adjusted raw image to a Tiff so the changes can be seen.

Quote

If I send a picture from Qimage to CS4, AdobeBridge automaticallly opens. Does that mean that Bridge is using camera raw and assigning its own profile to the raw file?

I am not an expert with bridge, but CS4 will open the raw image in whatever color space you suggest. It will use Adobe RGB or sRGB or choose from a list of profiles.
There is no concern for any double profiling.
Fred


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Seth

Sr. Member

Posts: 322

Re: Raw processing questions

« Reply #2 on: September 10, 2009, 02:06:45 PM »

Quote

author=nbagno link=topic=349.msg2202#msg2202 date=1252557743

2. Pre processed files by another program – If I opened a raw file in Lightroom, and later opened the file in Qimage studio, will it now be double processed?

The answer is, NO. Actually, a RAW file is not modified and saved as such. The XMP sidecar saves the data and it is re-read with what you changed when you open it again. You CANNOT save a raw file in PS; only as a TIF, PSD, PS RAW, etc. The only way to "save" the raw file is to convert it to DNG. There is software that will save them but it is a separate, intentional utility. Either deleting the XMP or a program just ignoring it would have you start over with RAW processing (or "developing" in amateur terms).

QI WOULD see the changes if it is reading XMP data--but it does not appear to be doing that. Threfore it is not modifying XMP data either. (I DO have Mike's camera profiles so it uses the one for the camera the file was shot on.)

Quote

3. If I send a picture from Qimage to CS4, AdobeBridge automaticallly opens. Does that mean that Bridge is using camera raw and assigning its own profile to the raw file?

What kind of "picture?" QI gives you an option to save edited files (JPG, TIFF) rather than just attach an FLT. If you do that, Bridge opens whichever you pick--the raw or jpeg. Otherwise, Bridge (assuming only a raw file is there) will open the raw using the XMP data. (There is an Adobe option to save in a "RAW Database," instead of XMP. But, if it gets corrupted you start over with a lot of re-work on all files.)

The thing to remember with raw is that they (unless intentionally) never are modified. You don't lose data. The XMP is just a guide to the raw; and always reversible with no degradation.

BTW, IMHO you should always assign profiles rather than embedding them unless the end user/client requires it.


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Seth
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