Ken Ford
Refuses to suffer fools
I just picked up a very inexpensive but clean Mamiya 210/4N for the 645 system. The lens is perfect except for a stiff focus helicoid.
It is usable as is, but I'd like to try getting to the helicoid and relubricating - I suspect the original lubricant is there but stiff, and needs to be cleaned out and replaced. I've done this kind of work before with other lenses, but I've usually had the benefit of at least a photo of how the specific lens comes apart.
I suspect if I pull the mount and baffle I should be able to get to the helicoid from the rear. Has anyone had one of these apart that can offer advice?
It is usable as is, but I'd like to try getting to the helicoid and relubricating - I suspect the original lubricant is there but stiff, and needs to be cleaned out and replaced. I've done this kind of work before with other lenses, but I've usually had the benefit of at least a photo of how the specific lens comes apart.
I suspect if I pull the mount and baffle I should be able to get to the helicoid from the rear. Has anyone had one of these apart that can offer advice?
Ken Ford
Refuses to suffer fools
Well, coming in the back way won't do it.