Quote Originally Posted by bmac
I'll try the regular picture frame glass. I am doing 8x10's with a 65w grow light about 2' above the print frame. 145 second exposures right now. Something is up...
What is the peak density on your negatives? What is your density range on the negative? If the negatives are overexposed and then developed to the proper density range the printing exposure times will be lengthened.