Hi. I have large scans of 35mm film. I mean quite large, up to 10344*6888, 48 bits per pixel. This sometimes includes a number of pixels that can/should be cropped out. The point is, that the files are large. In fact they are above the effective resolving power of the scanner, and the film itself, so they can be shrunk without loss of detail, if done properly. My question is, once I prepare them for printing, I wouldn't want them to be further resampled in the photo lab. I mean, I'd like to do all the processing myself, and then just have the photo lab print them. Now the problem is I worry that lab printers may have a specific pixel count for a given size, and will either up- or downscale any photo that doesn't have the exact dimensions. So I'd like to feed them exactly the pixels they need, or at least an approximate number if they do have some tolerance. But since 1) I don't really know how they work, 2) I don't know their exact DPI, 3) print size options are often only approximate, I'm at a loss. - Does anyone know how lab printers operate in this regard? - Can I consult their DPI specs anywhere? - Can they work with 48-bit material? - Should I look for printer-specific profiles or use sRGB? Is Adobe RGB useless? CIELAB? - In case one can create chemical prints from digital material, does any of the above worries apply? My first guess would be: downscale to 300dpi (2400px height for a 12x8 print), embed 24-bit sRGB, cross fingers. These are an awful lot of questions, but I'm thankful for any info. I suspect experience dictates wisdom here and I have little of the former. Thanks!