We are coming into this discussion a bit late (spending lots of time up in the garden where there is no computer), so we hope we aren't rehashing old info, but...... Bill & I are professional photographers, and have done a fair bit of color testing of color films. This film discussion seems to be seamlessly sliding back and forth between negative and positive (slides or transparencies) type films. It should be stated that the final color rendition is achieved in completely different ways. Slide film is basically a one step process. All things that effect the color balance/contrast (essentially) are made before development (like film choice, and filtration, lighting conditions, exposure, etc.) However, when shooting _negative_ film, beyond the pre-development controls, there is also the added control of color balance/saturation and contrast when _printing_. We print our own color, and have learned that even a very slight color shift in the filters will make a world of difference in the final image. This is also true of exposure as well. Amateur printing (like one-hour labs) use paper that is very contrasty. This assures a better print from under exposed film (which most of the 'point & shoot' cameras provide), but loses much of the subtlety that is so important in any 'descriptive' photo. These machines have the capability of adjustments, and do have computer programs to match each particular type of film. That said, the smallest change a print machine operator can make is ‰ 10% (which we consider a gross change), and that is assuming that the machine operator pays attention.....a very big assumption. In general, we prefer Fuji color film products to Kodak. With the exception of Kodachrome (slide film) Fuji films and papers are supposed to be much more stable, both chemically and when exposed to light. Most Kodak film products, even stored under ideal conditions will start to degrade in about 10 years. Fuji films and papers are now supposed to be stable for about 75 years (This statistics come from independent lab tests, not the manufacturers). While some films are more 'neutral' than others (this is especially important when shooting slide films), and some films render some colors better than others, the lighting conditions under which they are taken can overwhelm any film's predisposition to color rendition. If one takes photos in open shade on a clear sunny day, all the images will be very blue. The light which is illuminating the subjects in the shade is being reflected off the blue sky, and will skew the results. The same type of problem can happen when shooting in full sun at the edge of a lawn. The light reflected off of the _green_ lawn will throw a green cast over everything. The trick is to 'see' the light when shooting, and use it to your advantage. As previously stated in this discussion, 'Professional films' perform better than amateur products. But, all film should be refrigerated whenever possible, it helps it keep better, no matter what type (but be sure to allow it to warm up to room temperature before opening to avoid condensation problems). Someone mentioned 'polarizing' filters earlier. What these do is cut out the reflected light that is sitting on the surfaces of the subject. For example: If you are photographing yellow leaves in the shade, you can get rid of the blue reflections of the sky on the leaves by using a polarizing filter. The color of the leaves will appear more saturated by getting rid of that blue reflected light. One must be careful however, not to use polarizers too much, getting rid of all reflected light can really deaden a photo. Hope this is helpful, Bill & Harvey SKID Plants Zone 6 CT SKID Photography in NYC