Those contact printers are only good if you are going to make 100 prints from one negative and are willing to spend an entire day, or more, figuring out the dodging and burning by switching some of the bulbs off and diffusing others.

They are not for the fine-art photographer who wishes to make a print in a minimum amount of time.

If, on the other hand, your negatives need absolutely no dodging an burning, and/or you do not care how fine your prints are, then these contact printers are fine.

Michael A. Smith