I am trying to get an old enlarger aligned. It is an old Beseler 45, I believe the model is called an mcrx. I am using a "two mirror" method of doing and alignment. I am trying to get the negative stage in alignment first. I found a small screw that allows me to adjust the levelness of the negative stage in and out toward the front and back of the enlarger, but I can't figure out how to level from left to right. It might be hard to describe, but if anyone can give me instructions on adusting the other planes to be level, please leave a note!