🚀 go-pugleaf

hyw@philabs.philips.com (Huay-Yong Wang) writes:
>Problem: I have a bunch of 24 bit color images that I want to
>output onto film via a film recorder. Most service bureaus only
>output onto slides and will charge alot to output on negative
>films. What I really want is to record the images onto negatives
>so that I can print them myself at home. (I am not interested in
>getting into printing from slides...) 

>Question: Have anyone tried inverting an image using an image
>editing program like Photoshop and then output it onto a slide
>so that a negative image can be obtained on film. Is it possible
>to get decent color balance printing a negative image recorded on
>a slide film? Comments? 

Your best bet is to call around to other service bureaus!  There
is no reason to charge more for negatives, except possible the
handling of changing the film in the camera.  I have done this
rather routinely on a LaserGraphics LFR.  Ektachrome-100 for
slides, Kodacolor-100 for prints.

Inverting the image is not enough.  Look at color negative film --
there is a dense orange "mask" you would have to add electronically.
This is there to compensate for color response of the paper.

Suggestions (in order of preference):

(1) Find a service bureau that will shoot the Kodacolor-100 film.
(2) Print directly slides-to-paper (processes are available, I
    don't know if suitable for home darkroom -- I have had it done
    for me frequently for printing slides).
(3) Figure out how much orange to add to the color balance in PhotoShop.
    I would create a known color patter, invert, add various degrees
    of color balance, and add text to each example to say what you
    have done.  Spend the time/money on one test roll and you are
    set from now on.