LaketreeMD
> I had previously posted asking about sooting indoors under heavy flourescent
> lighting. The sugestion was made to tape a green filter to the flash.
> Why green?
> Why to the flash and not the lens.
> Can any processor make the color correction and will they do it automatically
> or do I need to send a note with the film?
If you are shooting color negative film, adding a cp30Green filter to the
flash will fairly closely match the flash color to the flourescent color.
Overexposing the film 2/3 to 1 stop will permit the printer to correct
out the green cast with minimal ill effects (you may need to warn the
printer about what you have done...). If you shoot slides, you must add
a filter to correct the flourescent color cast, and a cc30Magenta works
well with most common flourescents. BTW, if there is some daylight
mixed with the flourescent illumination, an FLD filter, available from
several makers, will do a good job of correction (use the reverse color
on the flash, which can be found by placing the FLD filter on a white
sheet of paper, and placing cc ["color correction" - optically good enough
to use on taking lenses], or cp ["color printing" - optically poor, but OK for
coloring light sources] filters on top until the resulting sandwich looks
neutral-grey [if you have used three colors to make the reverse filter,
remove the same values of each until only two colors remain...]).
Hope This Helps
David Ruether - http://www.fcinet.com/ruether