Taking photographs takes a diver's life. Forgetting about everything but the picture spells danger.

Lessons for Life, one of our most popular sections, teaches divers things they should always remember when hitting the water. In case there are any you've missed, here is a round-up of all the Lessons for Life from 2012.

Subgear’s SG500 has been given a new name, but underneath this fresh moniker is the same high performing reg that earned a Best Buy rating in a major ScubaLab regulator review. In real-world diving it’s a sweet breather in all diving positions and dry as well. With its low work of breathing, surprising amount of reserve capacity and a solid track record for its in-water work, the SG500 is a proven performer.

Cressi’s frameless mask is lightweight, low volume and offers a compact profile. Its flared single window lens provides good field of view, including over the bridge of the nose. The silicone skirt’s double seal system is effective in blocking water entry. Strap buckles attach directly to the skirt, allowing for lots of lateral movement, plus lets the mask fold flat for packing. The mask comes with a black or white skirt.

The winner of both a ScubaLab Testers Choice and a Best Buy, the Travelight is a full-featured jacket-style BC designed for traveling divers. Constructed of featherlight 210-denier nylon, it comes with Cressi’s Lock Aid integrated weight system, two zippered pockets and six alloy D-rings. Its soft pack design can be folded in seconds and stowed in its own carry bag. For 2013 the BC features a new range of colors.

Check out the ScubaLab gear review for the Nauticam NA-RX100 Housing made especially for the Sony Cyber-Shot DSC-RX100.

What have this year's Sea Heroes been up to since their selections? Read on to find out.

Developing a deeper appreciation for wreck diving with intensive training on the Kittiwake.

Water-conservation advocate Jill Heinerth is Sea Hero of the Year 2012

CO testing is recommended, not mandatory, and poisonings are not recorded — but is there really cause for alarm?

Six tips on getting the most from pre-dive briefings

Planning a liveaboard scuba diving vacation? Read our inside travel guide on the Belize Sun Dancer II, and plan your next dive destination today!

Of the 11 data crunchers in ScubaLab’s 2012 shootout, these six models showed they had the right stuff.

In this year’s highly competitive field of 3 mm wetsuits, these four stood head-and-shoulders above the rest.