Very briefly, slides are positives, which means that once developed, the film displays the true colors of the picture. Print film, once developed, displays a negative image, which requires another step - putting onto print paper - before you can see the true image.
The advantages to slide film are :
- it is generally a lot cheaper,
- you display the original image, which inherantly has more detail (unless you blow up your prints to poster size)
- Slide film tends to have slightly better grain and color than print film at the same ASA rating.
- Pictures tend to have brighter, prettier color performance, as you deal with projected light, rather than reflective light.
- Slides are less easy to look at without a magnifier, projector, or viewer
- If you want to make prints, the results are usually a bit too contrasty. This seems to be a limitation of the processes and paper rather than the film itself.
- Slides have virtually no tolerance for error. You can be off by 1 or 2 full stops with print film, and the development process will correct for it when transfering from negative to print. This step does not exist for slides.
All this IMHO
Hope that helps,
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