Good morning!
Let's start by saying that, "all things equal", same profile, same paper setting, same driver settings, same image, the prints will print the same from PS or Lightroom and Qimage (with Qimage having a decided edge on quality!)
Could you clarify, "The only difference In processing that I can identify is saving to a tiff file from Lightroom and the different types of sharpening."
Did you print a Tiff from Qimage and a processed RAW from Lightroom? If so, when the tiff was created, it could have been created with a different colorspace embedded.
If you used the same Tiff for printing both images, then check driver settings for OFF for Color management and all other settings...
Run your mouse pointer over the thumbnail of the tiff and the raw...(assuming the original was a Raw) and read the Hotbar at the bottom of the Qimage screen, left side.
It will show the embedded or not color space. See if they match.
What printer? What paper? What profile? What image mode was the original?
In the Qimage editor, run your mouse pointer over the areas of the fog from which you see blue. Check the RGB readings that show in the editor comparing the level of B in that area to the other parts of the fog.
Let's get some idea of what's going on.
It will work out!
Fred
To answer your questions.
Yes, I printed a tiff image from Qimage and a processed RAW from Lightroom. The tiff image was created from the file in Lightroom and there was no further processing in Lightroom.
The tiff file has the embedded colorspace Prophoto RGB which is also used in Lightroom.
The printer is an Epson 3880. The paper is Moab Entrada Bright. The profile used on both prints is one I created using a Colormunki Photo. I'm not sure what an image mode is. Could you explain?
The top of the fog area which prints out perfect on both has an RGB value of 252 253 253 in Qimage and 253 253 253 in Lightroom. Just before entering the blue area, the RGB values are 245 245 245 in Qimage and 245 245 245 in Lightroom. The middle of the blue area has an RGB value of 230 231 229 in Qimage and 231 231 231 in Lightroom. Seems like both are very close and neutral.
I'll try to read the blue values on the print using the Colormunki.
Thanks a lot for your help!
Added: The measured sRGB values in the middle of the (what I thought) blue area from the Colormunki are 223 231 226 which they say is a greenish-white.