half-­depressing the shutter as the ­camera tracks the subject, and then fully ­depressing it at just the right moment to capture the image.” What filter is best for underwater photography?

If you want to capture underwater images, don't miss our guide to the best waterproof cameras and housings, by Claire Gillo ...

Many of the best waterproof cameras are action ... it’s a serious contender. This budget compact camera is waterproof to 15m and keeps things very simple. There's a 16MP sensor inside, and ...