I have been offered a Beseler 4x5 condensor enlarger. I have gathered that some of the 45MX, MXII series are very critical to align due to the provision for til ting the negative stage. I have also been lead to believe that the latest MXT mo del solved that to some extent. Can someone confirm this? Can you also help me i dentify the model of this particular unit. It is painted black but the current o wner says there is no model identification. I will see the unit tomorrow and wou ld like to have the information to determine for certain the model. He is asking $750 for the unit, I think that is high if it is an older MX or MCRX, maybe in line for the current MXT.