The basic problem shooting this set-up is subject acquisition. Just finding the tiny critter in the frame can be frustrating. Especially when it's moving a bit. Pygmy Seahorses always seem to be turning and bowing down. And of course, the gentle rocking of the sea can move your body as well. The result of which, is lots of screaming and cursing into your reg.
Deco can be a problem as well. These tiny creatures are usually found at 70' (23 meters) or deeper. 10 minutes can pass in a heartbeat with nothing accomplished beyond getting in position and spending a ton of time working the grid trying to find the Pygmy. So it helps to have as much work done topside before descending. Strobes are set in position tight to the port, aperture pre-set at f25 shutter 1/125. LH strobe 2 clicks from full, RH strobe 3 clicks.The last thing you want to do is bring the housing away to check exposure and then re-start the process of finding the Pygmy.
Install the 2x tc on the lens. Set the 105mm to manual focus and rack it all the way out. We want maximum frame filling images here.
Now the fun begins, once the Pygmy is located, it's time to get the eye in focus and snap the shutter. No attempt is made at composition. Why? Because by the time the eye is sharp, something moves and it goes out of focus or you lose the subject completely. They field of view is so tiny, that even a 1/4" of movement, on your part or the subjects, can move it out of the frame.
So, see a sharp eye snap the shutter. After you've got some nice clean shots in the can, go back and add composing to the mix. You may get one good shot before hitting deco...
My original plan was to add the Woody's diopter as well but it was just too challenging already. Plus, the Pygmies were pretty much filling the frame as it was.
Ok, enough talk. Here's a Denise Pygmy, Full frame:

And a Barbiganti. (bit of a crop) I call this one the Bartender :

Love to hear any feedback, good or bad.
Rand

