As a result it is much more sensitive to the exposure settings and is unable to capture a wide contast range. However, it does make for excellent, bright, pictures for projectors. When I started taking pictures in caves I switched to negative film to get a wider contrast range and more latitude for incorrect exposures. Seattle Filmworks does this cheaply and that is the primary reason why I used their film services for a decade. Negative I only use 100 ASA negative film for outdoor pictures.
Negative film has a flatter contrast than slide film.
The slower the film the small the grain. The quality is directly related to the size of the negatives. You can shoot 200 ASA negative film at 100 ASA and barely tell the difference. Slide film would be noticably light and washed out. As a general rule, over-exposing film is better than underexposing.