[rollei_list] Re: Plate Adapter and missing velvet
- From: Emmanuel.Bigler@xxxxxxxx
- To: rollei_list@xxxxxxxxxxxxx
- Date: Thu, 15 Mar 2007 11:51:46 +0100 (CET)
> I got my adapter set in the mail the other day, and it's very
> complete. It comes with four film backs, a ground glass back,
OK this is standard
> and another back which looks like it allows you put in a roll of
> film - it has only a spring loaded plate about 6x6cm. Am I guessing
> right?
Hmm.. could you put a picture of this accessory somewhere ? or you
could check the Rollei Practical Accessories Manual, hosted by Richard
Urmonas
as of 1954 :
http://www.urmonas.net/manuals/rollei-prac-acc-54/rollei-prac-acc-54.html
as of 1960 :
http://www.urmonas.net/manuals/rollei-prac-acc-60/rollei-prac-acc-60.html
> The velvet is missing on the camera back - a half inch or so on the
> top - any suggestion what to patch it with? Or should I get that
> something to completey replace it with?
There has been a discussion here about velvet / push / felt for cut
film holders. Mays you could find some info ?
http://homepage.mac.com/fwstutterheim/rugarchives/2002-01/00957.html
> The ground glass back is very useful to demonstrate parallax, and
> depth of field, and smooth action and effect of the aperture.
This accessoory was discontinued and not supplied at the end of the
plate holder fabrication in the seventies. I got my ground glass
second hand. You can check that there is no gross defocusing when the
camera is set to infinity, but I doubt that you could appreciate fine
defects of parallelism...
> I still have my finger tips, so I can also report that I reached
> into my light safe box, and cut film to size, and loaded two backs.
> I used a kitchen (plastic) cutting board, put the 4x5 emulsion down,
> and cut it to size with the plate adapter insert as a guide. This
> would be OT, but any suggestions on how to process these sheets in a
> spiral tank? I was thinking of using a weak rubber band to hold the
> film in a semi circle, and put two in per 16oz (450ml) tank. Thanks,
> Elias
A crude solution but tha I used sucessfully consists in processing two
6.5x9 films back to back in Paterson or Jobo tank, the same you use
for 120 rolfilm, without spiral but with the central column. You
sligthly bend the film so that the emulsion faces outwards, you can
put two of them on both sides of teh colum. the column is required to
prevent light leaks.
A more efficient solution is to purchase the Combi Plan tank. It used
to be labeless "GEPE Combi Plan made in Sweden" and is now marketed as
the HP Combi Plan, HP marketing, the well-known US company
distributing several European brands. The Combi plan has an adjustable
rack designed for 6.5x9 cm glass plates or cut film. You can
accommodate 6 films, it takes one litre of developer. The sams rack is
adjustable for 9x12 cm and 4x5" plates & films. I think that there is
a US tank named Yankee, designed for 4x5" but that could, may be,
accommodate 6,5x9 cut film.
The deluxe solution consists in using the Joba spiral tank for cut
film, the device has a spiral that accommodates 6,5x9, 9x12 cm and
4x5" films.
--
Emmanuel BIGLER
<bigler@xxxxxxxx>
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