FS: Sea&Sea 20mm and 16mm Lenses
 

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The Sea&Sea 20mm and 16mm Wide-Angle Conversion Lenses can be mounted
on a wide variety of popular waterproof cases by Sony, Canon, Olympus,
Nikon, Panasonic, etc. You must use a Sea&Sea lens adapter specifically
made for your model of waterproof case. Refer to the Sea&Sea Digital
Camera Accessories page to locate an adapter for your model of
case/housing:
http://www.seaandsea.jp/products/acc...igital.html=F1