In a message dated 8/23/2001 7:30:33 AM US Eastern Standard Time,
[EMAIL PROTECTED] writes:
> Hi, gang.
> Sometime ago it was a discussion (very instructive) about cibachromes. I
> remember something about slides must be exposed in a special way in order
> to obtain good cibas later. What is exactly this special exposure? Over?
> Under?
> I have a pair of velvia shots I want in ciba, so I want to know the
> characteristics a slide sholud have to obtain a good ciba.
> Thanks in advance
>
> Albano
>
Cibachrome is now Ilfochrome.
A "good" slide should result in a "good" Ilfochrome print. After 23 years of
printing on Ciba/Ilfo, the only slides I routinely avoid printing are either
noticeably uunderexposed or have large blocked-up highlights and large shadow
areas(masking is a pain I prefer not to inflict on myself). Dense slides
require inordinately long enlarger exposure times due to reciprocity failure.
If you bracket exposures in the camera, generally the lightest exposure that
has full detail is the easiest to print, but may not produce a result as
pleasing as a slightly denser slide. Ciba/Ilfo material is available in three
contrast grades. Low and medium contrast material produces the best results -
and are both adequately contrasty to say the least.
The Ciba material from the early to mid-80's got a bad rap for too much
contrast, but recent and current generations are much improved.
Printing Ilfochrome remains a YMMV situation. A drastic difference from
negative material is the greater exposure latitude. If a first print is
significantlyunderexposed, you will need to double (or more) the exposure.
Regards,
Ed Matthew
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