[rollei_list] Re: B&W slides, why should we care for them ?
- From: bigler@xxxxxxxx
- To: rollei_list@xxxxxxxxxxxxx
- Date: Tue, 3 Oct 2006 20:29:00 +0200 (CEST)
> BTW the B&W slides are excellent to be projected, I
> have 24 6x6 Agfa Scala slides that I took with the
> Rolleiflex 2.8C, I have seen them projected with a
> Rollei P 11 projector and they looked beautiful, it
> was almost like to see a new copy of "Casablanca"...
I agree with Carlos about B&W slides. they are a pure joy to project.
No grain, deep blacks, subtle levels of gray, everything you would
expect from a good print. For winter landscapes, color slides do not
really bring anything more.
I had made my own B&W slides with my Rolleiflex 20 years ago with the
discontinued Tetenal kit, but it was difficult to get consistent
results. Also you need a film with a clear base in order to get pure
whites.
Agfa Scala solved most of the technical problems but "they" decided to
make the combination of chemistry and process proprietary and secret
and it will be difficult to get the same quality with another process,
So we'll wait until we can try the direct positive film marketed by
Rollei-Berlin and make a direct comparison.
------------------------
Now somebody mentioned the word 'mad' so let us continue with some
really mad ideas with B&W slides ;-)
First mad idea is to follow the example of Sergei Mikhailovich
Prokudin-Gorskii.
http://www.loc.gov/exhibits/empire/
http://en.wikipedia.org/wiki/Sergei_Mikhailovich_Prokudin-Gorskii
Get 3 old 6x6 slide projectors (of course, we would insist for doing
it with a Rollei 6x6 TLR) from garage sales (this may take some time,
but here we are dealing with pictures that can last forever ;-) make 3
images with your favourite Rollei trough 3 R G and B filter and
project them with the 3 projectors fitted with the same RGB filters.
Since it is accepted that we'll be able to get B&W film for a long
time we do not have to care for the predicted definitive demise of
color film.
Second mad idea. Suggest F&H in Braunschweig to fabricate a new series
of 3-eyed cameras, for the abovementioned trichromatic process. Since
most of us cannot live without the TLR principle, this would make a
4-eyed camera, 3 eyes for RGB in parallel plus a coupled viewing eye.
A refinement would be to redo a trichromatic cameras with beam
spliiting prisms. A TLR of course ;-)
Third totally mad idea. Mimic autochrome plates. Instead of RGB
potatoe starch, place in front of you B&W film a mask made of a RGB
filter mosaic. For example a good quality reproduction of a color
pattern recorded on one of the last rools of color slides before
stocks are definitely empty. Develop the B&W film so that it delivers
a B&W slide and perfectly re-adjust the color mask pixel-to-pixel in
front of the B&W slide.
--
Emmanuel BIGLER
<bigler@xxxxxxxx>
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