Peachpit Press 50D: Exposure: From Snapshots to Great Shots, 288Pages Softcover Book, by Jeff Revell

Basically it’s done by putting two pieces of transparency film together in one slide mount. Some photographers call it a montage, but call it what you will, it can be quite effective with the right subjects. So, for those of you who shoot slides, here are some dynamite ideas to try.

If you've exposed twice on one piece of film, that's what I call a double exposure. But if you've exposed three or more times, you’ve entered the realm of magic, also known as multiple exposures. Think four, fourteen, or twenty-four. Think Wow!

Mark Wallace introduces the basics of proper exposure with the exposure triangle. The first part of a mini-series of videos about fundamental camera settings, Mark takes us right back to the beginning and explains what we need to get the perfect exposure based on aperture, shutter speed and ISO...