Re: 4x5 field camera considerations

[eml@xxxxxxxxx]

> 
> 
> eml@xxxxxxxxx writes:
> >...My guess is that no reputable manufacturer has made a bellows that
> >leaks IR light in many years.  I wouldn't worry about it.
> 
> I have a Wisner field camera with a leather bellows.  I haven't tried
> it, but when I talked to Ron Wisner about it, he says it is not IR safe.
> Wisner does sell an "IR" bellows for the camera for $80.  I just used my
> 8x10 camera with a reducing back (it's a Canham) and it works fine.  I
> have heard of no other specific cameras with problems, but I would guess
> that there are some.  I would be suspicious of any cameras with leather
> bellows (not that there are many new cameras with leather bellows other
> than the Wisner, the only other one I've heard of is the leather wide
> angle bellows for the Arca Swiss cameras, and they also make a synthetic
> version).
> 
> John Sparks
> 
Sorry!  I never gave that a thought!  Leather bellows...  But then,
my Linhof TechnikaIII had a leather/black cloth lined bellows, I
think, before I replaced it, and it was of the exact sort that
was in the Linhof literature I referred to.  I'm confused as to why
Linhof's bellows should be OK, while Wisner's very similar-appearing
bellows would not.  Sorry for any possible misinformation.

Oh, yes.  The newer Linhof bellows work fine with Konica IR, even when
the camera's Rollex back's darkslide is out for 15 or 20 minutes.  I
forgot it, once, and then put it back in.  I advanced the film before
the next exposure (a SECOND time, leaving a blank frame because I was
afraid of fog) and wound up with a perfectly blank, unfogged negative.
That's why I wasn't very concerned.

Ed Lukacs

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Topic No. 13