RE: [APML] Rho Ophiuchi Using Provia 100F

[Chris Schur <comets133@yahoo.com>]

Wade, Im obviously interested since my supra 400 is
now changed to nearly all red backgrounds.  Im
targeting provia 400 right now, or E200 which is
better for emission?

Chris

--- "Thomas W. Earle" <twade@bmi.net> wrote:

> Chris,
> 
> The blues are what led me to test this film more
> thoroughly.  I was
> hoping that it combined with E200 would make the
> "perfect" match;
> however, given Provia 100F's reciprocity failure,
> this will not be
> possible with my current slower system.  Besides,
> E200's blue
> response isn't too terribly bad if you have dark
> enough skies to
> expose the emulsion longer.
> 
> Wade
> 
> 
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