Re: to make enlarged negatives
Strange Ross (ross@axp.psl.ku.dk)
Sat, 19 Oct 1996 13:28:22 +0200
>On Thu, 17 Oct 1996, Strange Ross wrote:
>> I have for some time been using Agfa's CS film which, I think, must be
>> characterized as a lith film; in any case, it easily produces very
>> contrasty positives (or negatives) Agfa's G5c developer. It has surprised
>> me that the film apparently reproduces all intermediate tones quite
>> faithfully (with proper development, and possibly an initial water bath),
>> and that I can discern no 'lith effect'. Compared to Agfa's N31p the CS
>> film has a much straighter characteristic near threshold; this means that
>> where you would have to place your positive (or negative) somewhat up on
>> the N31p curve (to avoid the reduced contrast near threshold), the CS film
>> can be exposed right down to threshold. This, of course, again means that
>> you can use shorter exposures for your alt-photo process.
>>
>The "CS" film may be another one of those items available in Europe & not
>the states. Can anybody say for sure? Do you know what the CS stands
>for? Can you tell us something about the film -- what it's made for,
>etc.?
>
>Judy
Quoting (and translating from Danish) from Agfa's instruction sheet:
"Alliance Camera CS and CSm are orthochromatic line-drawing films with high
speed and ultimately Rapid Access quality, guaranteeing maximal sharpness
for lines and dots even by exposure through the backside of the film. CSm
has a special, mat coating for short vacuum times and for preventing the
formation of air bubbles. This film also is well suited for exposure of
photopolymer plates."
I don't know myself what 'Rapid Access' is. Also, I am presently using type
CS, being unaware of type CSm at the time of purchase.
Strange
Strange Ross
Hvidehusvej 35
DK-3450 Alleroed
Denmark Phone: (+45) 48 17 42 92 http://axp.psl.ku.dk/~ross/