[LargeFormat] Double Protar Lens

[Richard Knoppow]

----- Original Message ----- 
From: "LNphoto" <LNphoto@twmi.rr.com>
To: <largeformat@f32.net>
Sent: Monday, September 01, 2003 7:20 PM
Subject: Re: [LargeFormat] Double Protar Lens


>
> On Monday, September 1, 2003, at 09:00  PM, Richard
Knoppow wrote:
> >  the "C" set lenses _are_ series
> > VII Protar cells.
>
> yep
> >  The C set was sold by both Zeiss and B&L
> > as four cells for 5x7 cameras.
>
> well no three cells, but you figured that out in a later
post.
>
> > Zeiss may also have sold a
> > similar set for 8x10.
>
> > The Bausch & Lomb C set came with four
> > Protar VII cells, a Compound shutter, a barrel, and a
W.A.
> > Protar (f/18) in a Volute shutter and an adaptor.
>
> I can't say I've ever seen that particular set up in a
catalog. I have
> a few B&L catalogs, but most are limited to the
"Anastigmats"  I have
> them from 1911, 1913 and 1929.  The only one I can lay my
hands on
> right now is the 1911, and while it states the set comes
in a case and
> can be had in barrel, (101.00) volute (119.50) or Compound
(117.50) for
> the C set, it doesn't mention the Series V WA protar at
all as part of
> the set. neither do my other catalogs
>
> >  The Zeiss set did  not come with the W.A. Protar.
>
> Here's where I beg to differ as I have it in my hand,
well on the
> shelf.  The case is set up as a casket set and is roughly
2x2x4" (I've
> seen B&L sets on Ebay whose cases were leather wallets)
It's made of
> walnut and stamped with the Zeiss-Jena  logo of a cemented
doublet.
> The serial numbers date the lenses to 1919-1920.  The
barrel is marked
> in mm but also with the barrel size in roman numerals that
was the
> topic of another thread some time ago. It also has the
black brass
> frame for the strong yellow filter that goes with the set,
but the
> glass isn't there. I've talked with a couple of people
about having a
> new filter ground to fit, but the price was prohibitive.
>
>
> >   Complete boxed sets are extremely rare.
>
> I paid $400 for it from Midwest Camera Exchange.... It was
advertised
> in their monthly newsletter and I RAN to the phone with
credit card in
> hand when I saw it.
>
>
> > ---
> > Richard Knoppow
> > Los Angeles, CA, USA
> > dickburk@ix.netcom.com
> >
   I think there were many variations and permutations of
the sets. I have a very early B&L catalogue, probably around
1905 to 1910 showing the set with the WA lens in a Volute. I
think Zeiss supplied the WA lens with an adaptor to fit it
to the shutter or perhaps to the flange for the shuter and
barrel.
  B&L had the advantage of having the Volute. This is a
shutter which uses the same blades for both shutter and
stop. The minimum spacing of cells is very small so it can
be fitted with the WA Protar. Evidently Volute shutters are
very hard to repair. I don't have one so don't know what is
in them. However, the Series 00 Synchro Compur, as used on
Rolleiflex's and older models of the Super Angulon, is also
supposed to hard to repair but I've found them no worse than
other similar shutters. Perhaps the Volute is not so bad.
The only one I've seen at a local sale had parts hanging off
it, obviously someone's parts shutter.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@ix.netcom.com