When setting up a print in LR3 should I set the print resolution myself or just leave the box unticked and let it sort itself out? I don't use the printer often enough to be honest and it is ages since I last made a serious attempt at printing one of my photographs. However, the last time I did print, the results were remarkably accurate but I cannot seem to replicate that now. I have used all of the same settings that I did previously but I can not remember how I set the resolution up last time. I have my monitor calibrated. I am using an oldish iMac and an Epson R1800 to print some stuff from my EM5. Also, what about 16 bit? I am not sure whether my system is 16 bit capable so I just leave it unchecked. Grateful for any help. Thanks.