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What? More complicated stuff to learn, you might say. Wasn't the "Physics" section enough? All I want to do is go diving. True, but diving means to enter into an environment that is not natural for ...

The 12.3 megapixel Olympus E-620, which bridged the gap between the US$499 Olympus E-520 and the US$999 E-30, was introduced in February of 2009. Compared to its predecessors, it demonstrated the ...

Colors are different underwater. Colors are really nothing more than different wavelengths reflected by an object. Underwater, waves travel differently, and some wavelengths are filtered out by water ...

Sometimes it's hard to tell by the title what a book is all about. "Submerged -- Adventures of America's Most Elite Underwater Archeology Team" certainly sounds interesting, but I wasn't quite sure ...

In this section we explain dive tables and go through specific examples of repetitive dives, using both the PADI and the NAUI tables. Dive tables are used to determine how long you can safely stay ...

This is a review of the SeaLife DC1000 digital camera that you can use both under and above water. It consists of a standard (but modified for underwater performance) 10-megapixel digital camera and a ...

In this section we describe and discuss all the instruments necessary for scuba diving: submersible pressure gauge (SPG), depth gauge, timing device, as well as the optional ones such as compass and ...

A while ago I wrote about my experiences with seeing colors underwater that human eyes are not supposed to see at depth (see "Red at Depth). In it I described and showed examples of bright red at ...

Time to talk about cameras, underwater cameras. We've tested and reviewed a large number of cameras underwater over the years, both with and without housing. Initially, it was safe to say that the ...