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RE: bleach question

	>I have questions for you regarding the advantages/disadvantages of
	>doing a telecine from a 16 mm negative, vs. a low con 16 mm print,
	>vs. a low con skip bleach 16 mm print.


The main effects of skip-bleaching a print are (a) an increase in contrast
and (b) a desaturation of colour.  This is obviously the same in 16mm as
35mm. Usually the lab makes a lighter print so that mid-greys remain about
the same as for a regular print/process. The result is that blacks go
further into the black end of the range, while highlights are crushed a
little more.

It depends what you want in your telecine transfer. Traditionally, even
normal contrast film prints used to be a problem on telecine transfer, with
a fair amount of crushing in the shadow end of the range. Regular prints on
a modern telecine these days present less of a problem, but the extended
contrast of a skip-bleach print may still be difficult. It's not clear what
quality of telecine your budget is going to extend to.  And maybe you want
the crushed shadows for the "dream reality".

The desaturated colours can arguably be obtained in secondary correction at
telecine, using a normal print. It would take a little fiddling to match the
skip-bleach look exactly, and may be easier to achieve by using a
skip-bleach print. 

A low contrast skip bleach print is an interesting idea: the two contrast
effects cancel out, leaving desaturated colours.  Might look a bit muddy.

  Dominic Case
  Atlab Australia

Thanks to Cinema Products for support in 1998.
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