This photo was achieved with a Canon 7D, Tokina 10-17mm fisheye zoom lens and 580EX II flash in an SPL Waterhousing. I have designed a series of fetch-based games for the pool that are the foundation of each photo shoot. I'm underwater holding a tennis ball and Duchess the black lab is trying to find it. 🙂 Camera is set to manual. AFPS (Automatic AF Point Selection) is active. - Seth Casteel
Equipment and settings: Canon EOS 7D, Tokina AT-X 107 AF DX FISHEYE 10-17mm f/3.5-4.5 zoom lens- 1/250th at f/5.6, ISO 400
This image is the cover for Casteel's book, "Underwater Dogs", which can be found here. Follow Casteel on Facebook and Twitter. His portfolio can be found at his website, littlefriendsphoto.com, and he is also the founder of Second Chance Photos where you can find a PDF of shelter and pet photography tips for working with local animal shelters to improve the chances of adoption.