New Zen 100mm Dome port

Today I was lucky enough to be using the new Zen 100mm dome port today. It is definately softer in the corners than a big dome, but it's small size lets you get real close! Thanks to Alex for all his help with this

I teamed it up with a Tokina 10-17mm lens and a Kenko 1.4 x teleconverter, and could really see the magnification's effect on the subject. Lighting is critical though-my Inon strobes when correctly placed, didn't really leave enough room for my dry gloves!

The ability to get the subject so close is a definate advantage in terms of colour in green water. The subjects are much more vibrant out of the camera than they would be with a bigger dome etc.

While I was shooting, the sun went in, and I found that as I stopped down, the corner sharpness got worse!

Water temp was a cool 4 degrees!