I have never had the need print large images...until now. I have a few landscape photos that people want to buy prints of and I want to make sure I get it right. The lab wants the files at the correct size, so i'm just wondering if the best way to do this in CS3 is to go into 'image size' and adjust in the document part to the required inches. We're talking about 11x14 up to 16x20 size.
Files are 350d RAW files converted to jpeg and TIF (not sure which file types the lab wants yet).
Usually the lab wants files the correct aspect ratio, not the actual size. If they are not doing the sampling up for you why pay a pro lab (in my opinion).
For instance you can not print the same photo 11x14 and 16x20 but you can come close. 11x14 is a 1.27 ratio 14/11 and 16x20 is a 1.25 ratio 20/16.
Really the labs equipment should be up-sampling your image for you. So if your image is 8x10 at 300dpi they should scale it up to 16x20 for you since both are the same ratio 1.25
What lab?
Edited by davekone on Jan 09, 2008 at 08:54 PM GMT
11x14 typically prints on a Noritsu or similar machine that takes 300dpi files. So for that size you can crop and size yourself. Anything larger and they are printed on machines that have a built in upsizer that is better suited. Typically they will ask you to upload the correct aspect ratio and leave the exact sampling to the printer. Ultimately you'll need to check with the lab, but as Dave says, any lab worth paying will upsize the larger prints.
