I have recently run a few print orders through ProDPI, and while I've generally been quite pleased with the quality of their output, I'm having some real trouble on a few images with dense black backgrounds.
My first order included an image, "Image A", with a black background (and by "black", I mean RGB 0,0,0). When I got the prints back, I found that the background had a noticeable green cast to it, especially under daylight.
I contacted ProDPI and their customer service rep immediately offered to re-print the order. The re-prints arrived today. Now the background is more bluish than greenish, and slightly lighter than before... not really an improvement.
Wondering if I was just crazy, I dug out a print I had previously ordered from the local Costco. Placed next to the ProDPI prints, the difference is striking -- see the attached image.

Both labs are using Fuji Crystal Archive papers. ProDPI uses Super Type PD whereas Costco presumably uses whatever the consumer-grade version is. What's going on here?
I suspect some sort of calibration issue on their exposure unit, but not knowing what equipment they're running, it's hard to get much further than vague speculation...
My first order included an image, "Image A", with a black background (and by "black", I mean RGB 0,0,0). When I got the prints back, I found that the background had a noticeable green cast to it, especially under daylight.
I contacted ProDPI and their customer service rep immediately offered to re-print the order. The re-prints arrived today. Now the background is more bluish than greenish, and slightly lighter than before... not really an improvement.
Wondering if I was just crazy, I dug out a print I had previously ordered from the local Costco. Placed next to the ProDPI prints, the difference is striking -- see the attached image.

Both labs are using Fuji Crystal Archive papers. ProDPI uses Super Type PD whereas Costco presumably uses whatever the consumer-grade version is. What's going on here?
I suspect some sort of calibration issue on their exposure unit, but not knowing what equipment they're running, it's hard to get much further than vague speculation...