Q–I make small-scale models of different items. What is the best way to create realistic backgrounds with my close-up photographs? A–If you have a slide projector, or can borrow one, you can ...

What does parallax error actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Rifle scope parallax is often misunderstood. Here is a simple guide to how parallax works and how it applies to rifle shooting.

What magic does Apple use to turn a 2-D image into something that looks like it is there in real life? The answer is parallax.