Last week sent some jpg to the lab for printing. The shop assistant claimed that I have over-saturated and over sharpen my images. She said that sharpening is UN-neccessary becos their machine will automatically boost sharpness prior to print.
As a DSLR shooter who would like to PP my images for improvements, should we allow them to do the adjustments? Do we even need to PP on our own like contrast, sharpness, and saturation since these can be done by the lab?