Thanks. I was told that the early 45n-1's bellows were made of different materials, have you tested them? NO! I've tried to source other bellows that have the same capacity as the chamonix but no luck. I'm stuck with my shen hao bag bellows and short lenses (up to 210mm w/o much movements). I've been forgetting to push the bag bellows out of the way before inserting the holder lately so I've got some nice shots of the inside of them.
Mine was a 2nd or 3rd run....so fairly early. I did one IR shot some time back, that came out well, but i was in the shade under Roof canopy when i took it. Will have to try again.