QUOTE(jackie @ Apr 4 2006, 10:35 AM) [snapback]106379[/snapback]
I've brought in my photos in both RGB JPG and CMYK or RGB TIF format to see what I was doing wrong, but I never get quite the image quality I want, even with high-res images. I've come to the conclusion that these machines have been programmed to make all the decisions for the consumer with OK, but not spectacular, results
Yes.... there are two types of kiosk machines in labs. One is an "instant print" kiosk that will start printing your images immediately. STAY CLEAR OF THESE MACHINES! Anything that prints while you are standing there, is not a real photograph. It is a complete waste of money - and in this case, you are more likely getting better results with a properly set ink-jet printer, especially if you are using ICC profiles.
The other type of kiosk (namely those that are Fuji branded and connect to a big printer via a network) are simply ordering stations, that then feed your images via network into the lab's main image server (or PIC). It is on this workstation that image "corrections" and sharpening (if any) is applied.
However, if you are doing this on your own, in an RGB color environment, you need to work in, convert to, and save in the standard sRGB profile. (It is best to not only "convert" to, but also embed the sRGB profile, just for simplicity.) Doing this will preserve your color and density corrections for printing. With that said however, if you are dealing with a more "knowledgable" lab, you need to tell them to turn off the "Image Intelligence" software for your order. (This is software that automatically "corrects" images, but is NOT intended for professional images.) Our lab does not have this turned on by default - we must manually tell it to apply it to a "consumer" order, since most of our high dollar work is professional in nature. Mass merchant labs however, have this turned on by default, and most likely, cannot turn it off.... even if they know what you are talking about.
If that weren't enough, most mass-merchant our drugstore labs do not calibrate or otherwise balance their paper regularly. This causes most of the color shift issues.
It is for these reasons above, that many people now-a-days think that professional ink-jet printers are better than real photographs - which isn't the case. The reason this belief is so prevalent, is because of their experiences with non-experienced lab employees, and printers that are in horrible condition.
Owning two Frontiers, along with an Epson 4800 and 7800, I have the luxury of comparing results whenever I choose. I can say without a doubt, that properly printed photographic paper renders richer and more realistic tones. Not to mention of course - there are no issues with odd reflections, curling paper, and no archiving issues.
Anyway, if you have experienced bizarre and inconsistent results, I'd bet it has something to do with my third paragraph.