[LargeFormat] Re:5x7 Press Graflex Film Holders..

[tripspud]

Hi Jim,

      Theoriginal recommendation from Graflex was to use only cotton
with plain water and a second cotton ball to wipe the mosture away
for cleaning the reflex mirrors.

rich


Jim Hemenway wrote:

>  >>>Sometimes the laquer yellows. It can be removed with laquer thinner
> or denatured alcohol and fresh laquer applied. If it isn't yellowed
> leave it alone.<<<
>
> Be careful if you use the denatured alcohol as it usually contains some
> water.  I ruined a camera mirror once by cleaning it with plain ordinary
> tap water which washed most of the silver coating away.
>
> Jim - http://www.hemenway.com
>
> > ----- Original Message -----
> > From: "tripspud" <tripspud@transbay.net>
> > To: <largeformat@f32.net>
> > Sent: Friday, January 09, 2004 10:19 AM
> > Subject: [LargeFormat] Re:5x7 Press Graflex Film Holders..
> >
> >
> >
> >>Hi Richard!
> >>
> >>      I spoke to Alan Brubaker on the phone yesterday, but
> >
> > it
> >
> >>appears he is back ordered and I would have to wait for
> >
> > holders
> >
> >>to be made.  He also makes large holders up to 20x24.
> >
> > I've put
> >
> >>him in my address folder.
> >>
> >>     About the 5x7 Press Graflex, this is my third Graflex
> >
> > reflex camera,
> >
> >>though the only one presently:
> >>
> >>      The lens is a B&L Tessar 6 1/2 x 8 1/2 and seems
> >
> > like 10 inch focal length
> >
> >>and f4.5.  The package the camera came in weighed 12 lbs.
> >
> > and it was mostly
> >
> >>camera, so it's a big handfull.  Fortunately, you don't
> >
> > have to lift it to your face,
> >
> >>and it balances rather well at waist level using both
> >
> > hands.  The shutter lever is
> >
> >>on the left, use the thumb.  It's a thrill to see the
> >
> > image 5x7 without a focusing
> >
> >>cloth.
> >>
> >
> >   The problem with the film holders is that the standard
> > holder has a ridge to act as a light trap and to lock the
> > holder on the _holder_. The Graflex has the ridge on the
> > camera. The two will conspire to lift the end of the holder
> > off the back. Even if its light tight it may be tilted.
> > Check this.
> >   AFAIK the reference depth for Graflex holers is the same
> > as for Graphic holders of the same size. You can check the
> > holder with a depth micrometer and a reference block. The
> > block is simply a rigid piece of metal which will extend
> > accross the sides of the holder, preferably with a hole in
> > it for the depth gauge, although you can use the edge. Just
> > measure the thickness of the plate and subtract it from the
> > measurement. If the holder is a plate holder a plate of some
> > sort must be in it to give a reference surface. The plate is
> > usually held against the inside edges of the plate holder by
> > a spring.
> >   The ANSI standard depth for a 5x7 holder is 0.228 inches
> > from the outside edge of the holder (its reference surface)
> > to the back plate. Most sheet film is 0.007" in thickness,
> > this must be subtracted from the above if film is in the
> > holder when measured. That distance (0.221) is also the
> > depth the emulsion of a glass plate should be from the
> > reference surface.
> >
> >   The B&L Series IIb 6-1/2 x 8-1/1 Tessar is 9-7/8ths inches
> > FL. The front cell has a threaded back cap, very easy to
> > remove, so you can clean the inside of the cell without any
> > special tools although a rubber glove may help to grip the
> > thing. I have a couple of B&L Tessars of ancient vintage,
> > they are actually very good lenses.
> >   Check the mirror of the camera. These were silvered
> > mirrors covered with protective laquer. Sometimes the laquer
> > yellows. It can be removed with laquer thinner or denatured
> > alcohol and fresh laquer applied. If it isn't yellowed leave
> > it alone.
> >   Once you get the camera going you will have to get a flash
> > powder rig so you can be really authentic:-)
> >
> > ---
> > Richard Knoppow
> > Los Angeles, CA, USA
> > dickburk@ix.netcom.com
> >
> >   My 4x5 Super-D is the same way. Its a double handfull but
> > very well balanced with controlls as for yours. No cable
> > release, the thing was meant to be hand held. I've taken
> > some good children's portraits with it, they don't think I
> > am paying any attention to them.
> >
> >
>
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