In article <31715D8E.38E1@rc-produktion.se>, robert@rc-produktion.se says...
>Bob Neuman wrote:

>> You didn't say if the film is slide or print. For print film, use no
>> filter - the lab should make the color corrections (and it saves you
>> the film speed lost to the filter factor).

>In theory, this is so, but in practice and for various technical >reasons, it doesn't quite work. [rest of post describing why, deleted]

Hmmm, I better tell my clients about that (the ones who receive nicely balanced machine prints shot under daylight, daylight-tungsten mixes,
tungsten, flourescent-daylight mixes, flourescent, etc.;-). I do
generally rate professional negative materials 2/3rd to one stop
slower than rating, and amateur films at rating, which may account
for my success with avoiding filters (sure is easier than swapping
filters, even when there is no film speed advantage!).
Hope This Helps