[LargeFormat] enlarging lenses

[Jim Brick]

The 50mm adapter plate, I believe, does not work on the turret. I cannot 
use a 150mm Schneider APO Componon HM on a Beseler turret. So I don't use a 
turret. The lens mounting plate for this lens is like a double lens board 
with an inch long tube between plates which moves the large back lens 
element out and away from the insides of the enlarger (just behind the 
bellows) as it won't fit in there. My lens has a 50mm mount. Looking at the 
turret tells me that perhaps a 42mm lens will fit with a simple threaded 
adapter, and it should not vignette.

IMHO,

Jim


At 02:23 PM 11/23/2002 -0500, Rei Shinozuka wrote:
>continuing as a callow large-format photographer, i find i need to
>get a new enlarger lens for my 45MXT.   my old 35mm and medium
>format lenses have  39mm screw mounts and they fit on my beseler turret.
>i am looking at the schneider 135 componon S and it is listed variously
>as having 42 or 50mm mounts.  beseler shows adapters to put these
>onto 39mm mounts.  wouldn't this cause vignetting putting a big lens
>into a little hole?
>
>-rei