[pure-silver] Re: Speaking Of Graflex
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Sat, 15 Mar 2014 12:02:01 -0700
----- Original Message -----
From: "Mike Kirwan" <mkirwan@xxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Saturday, March 15, 2014 8:34 AM
Subject: [pure-silver] Re: Speaking Of Graflex
Cambo, which was sold by Calumet has a 6x12 back which is
very similar in
design to the Calumet 6x9 & 6x7 holders. In fact a 6x12
Cambo is on EBay
right now :)
Mike
The type of back originated by Grflex as the Graflok
was adopted by a number of manufacturers as the "Universal
Back". I am not sure that all will take all accrssories but
must take most of them. Graflex supplied Graflok backs for
all sizes of Speed/Crown Graphics and Graflex cameras but
accessories for some sizes are very rare. For several years
Graflex tried to get press photographers to convert from 4x5
to 3-1/4 x 4-1/4 but with little success. This size has
become a true orphan with few items including plain regular
sheet film holders available. Its very practical to use roll
holders in 2-1/4x 3-1/2 cameras and Graflex and others made
adaptors that would take 8, 9, or 12 frames on 120 film. The
9 frame size has the same aspect ratio as 4x5. Graflok
backs were introduced on the Century Graphic, a low-cost
miniature press camera made of Bakelite. The back was
intregal with the body. I don't remember the exact date but
it will be at the Graflex site at http://www.graflex.org
The Century Graphic came out about a year before Graflex
began offering Graflok backs for all its press and SLR
cameras of 4x5 and smaller. AFAIK, none were ever made for
5x7 size but by the late 1940s the Graphic cameras in this
size had been long discontinued although I think some
Graflex cameras were still made in it. The miniature size
Graflex SLR is no larger than a Mamiya RBZ and is a rather
nice camera. I don't think the automatic iris was offered in
this size. The iris mounting was made by Kodak in only one
size and accounts for the speed of the f/5.6, 190mm Ektar
and Optar since this is the maximum opening of the iris.
The same iris was used for the f/4.5, 150mm lens used on the
3-1/4x 4-1/4 camera.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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