Random pictures: the shells edition

As always, Random Pictures posts show some of the shots that didn’t make it into other posts. See previous random pictures over here.

So I went out to abeach near Krabi recently andplayed with extension tubes in-between swims. These devices are basically a hollow pipe that fit between your DSLRand lens. They change the optics so that you can focus closer on things than you ordinarily could – kind of like with a dedicated macro lens. Extension tubes are a fraction of the cost of a macro lens, s...