I printed with the Durst 601 using the condensers vs the color head; still working through the CLS illumination issues. I'm answering my own questions which may assist those looking at buying a used 601. The Saunders 14x17 inch easel is not restricted by the column with my enlargements. There is a neat trick to extend the head a few inches on the mount bearing to give more easel room if required.Most of my 645 MF enlargements are full frame on 8x10
When not using a speed easel I use one of two four blade easels. With a 33 inch/85cm column I expect the base of the column will obstruct the smaller Saunders 11x17 easel when printing 9x12 inches in a portrait orientation.
What is the most convenient 4 blade easel to use for my size enlargements with a M601?
Does a M601 heat up with a 75W bulb?
The 75w recommended bulb does not get hot and is no issue. I am using the 50mm Setopla lens panel, raised side towards the baseboard, with a 80mm f/5.6 enlarging lens. I have adequate bellows and comfortable head height when enlarging to a 5x factor, 6x6 or 6x8 inches. Did not check smaller enlargements.
The one time I used the enlarger with 2 glass inserts I had no dust problems. One negative was in the enlarger for 60 min and the print required no spotting. I know this will not always be the case but I'm hopeful it won't be a problem.
This is the best compact enlarger I have seen. Far better than an Omega B-22 and its competitors.