Stay Focused (free with in-app purchases) is an interesting app that does a very complex function for photographers called Focus Stacking. You take a series of photos, from 2 to 100, with different ...

Adjusting aperture alone can only do so much to get sharp images with a wide depth of field — sometimes, getting both point A and point B tack sharp in one shot is about as possible as a flying pig.

Focus stacking is a technique that will give your macro shots much sharper focus. Here's how to get started with a dSLR. Lexy Savvides Former Editor at Large Lexy was a producer and on-air presenter ...