Very few. There is only ONE lab in Portland Oregon that does color optical enlargment printing. They have the very last generation of agfa color optical printing machine. You know it too for a couple of reasons. First off, sharpness, holy crap their prints are sharp, especially from medium format negatives! Secondly, you now it when you pay, it is easily 3 times the cost of anyone else!
Originally Posted by Alessandro
BTW the name of the lab is Blue Moon Camera, in case you get the inclination to ship film all the way to Portland Oregon for processing. :/