In article <51f4il$pc4@newsbf02.news.aol.com>, jeffm9@aol.com says...

>I'm planning a shot to be taken in a couple of weeks when in my area for
>about a month each year we get freakishly magnificent sunsets of purples
>and blues, over a city skyline, which will, of course, be illuminated by
>office lights.
>I'm going to probably use print film (though I may also shoot chrome) and
>I will use 35mm with a Canon Tilt/Shift 45 lens to get the composition I
>want from the vantage point I'll have to shoot. My question is, do I need
>to use a correcting filter (80 series, I imagine, but if so which?) to
>keep the office flourescents from looking too yellow or green, and if I
>do, will I ruin my sunset?

For flourescent correction, a 30 Magenta generally works (but it will
overwhelm the sunset colors). Leaving some green makes a nice contrast
with the sunset, and an FLD filter will add some red-magenta to the
sunset in addition to partially correcting the flourescent color.
Remember that the color films will add their own color shifts,
if the exposures are long (due to reciprocity failure).
Hope This Helps