Preparing enlargements of raw pictures for professional printing?
If one is having large prints made by a professional printer (say, 3' square or more), does one... (1) ...take care of the enlargement in Photoshop (upsampling to necessary dpi in raw before outputting to tiff)? (I'm using CS6.) Or... (2) ...give the printer the photoshop file with the raw image in it? Or... (3) ...something else? Thanks to you all, as always!