Small photos in little white hard squares? not polaroid!?

-what are those small photos in the square white plastic? you hold them to light and see the photo inside. what are they called?As others already said - get a 35 mm slide film and put it in your camera, then shoot away. You can't process negative film for slides, nor slide film for negatives.



Oh, and if you have them processed, there's usually the option to get them already mounted (i.e. each individual slide inside its little frame) or just get them processed and receive the strips so you'd have to mount them yourself. More work, but you can use higher quality frames. The emulsion side of the slide is pretty sensitive to scratches and dirt, and there was an ongoing war between those people who used glassless frames (better projection quality, no dirt between glass and slide) and people who used one-sided or double-sided glass frames (with different types of glass....).
Slides are usually shot thus in the camera (i.e. a 35mm film camera) on special slide film and processed and mounted as slides. If you have prints or computer files a professional lab can make them into slides for you, but it willo not be cheap. Or get a friend who has a camera that shoots 35mm film and has close-up facilities (macro) to copy the prints onto slide film.



I echo the sentiment of the first responder - I started shooting slides in 1960!



Projected slides were a major medium for illustrating lectures before computer projection came along.
Slide, chromes, transparencies...shoot with a film whose name ends in "chrome" not "color".