In article , kz22+@andrew.cmu.edu says...

>I have a question for PB-4 Bellows Users:
>Any of you out there tried to mount an enlarger lens to those bellows ?
>I read in a book somewhere that you can do that. This eliminates weight
>for one, carrying a 105mm enlarger lens can is lighter yet able to
>maintain the same focal length for macro-work. I am wondering how
>difficult it is to do so.
>How does the lens mount interface work ? Is it a normal F-mount or is
>there a special mount ?

A few enlarging lenses press-fit into a Nikon BR-2 ring, providing
the bayonette for use on the PB-4. Some enlarging lenses need
filtration for Nikon-neutral color balance. Enlarging lenses from
about 100mm to 150mm can work well for infinity-focus, and allow
view-camera movements (though awkwardly...). For more, see the
150mm lens comments in my "SUBJECTIVE Lens Evaluations (Mostly
Nikkors)" on my web page at: http://www.fcinet.com/ruether
"Hope This Helps", "Bob Neuman", David Ruether