yes, from the table of lenses you wrote that goes well for a 35mm or 28mm on a durst 600 I understand the sixtif goes well for those who want to print half frame 35mm or less...
So almost nobody but I know who still shoot half frames so... who knows in the world....

What do you say about a 40mm lens? Does that lens go along with the 50 or with the 35 (talking about recessed plate)?

ciao