[LargeFormat] enlarging lenses

Rei Shinozuka largeformat@f32.net
Sat Nov 23 16:26:46 2002


the beseler book does show part # 8373 for 50x21mm to turret
and B&H has it for $74.50.  interestingly, no one lists
the M42 adapter part # 8342 to turret.  i just can't quite
envision how these parts would work.

-rei

> From: Jim Brick <jbrick@elesys.net>
> 
> 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

-- 
Rei Shinozuka shino@panix.com
Ridgewood, New Jersey