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The onboard pressure sensor changes sensitivity for leak check and diving by variable control program (PAT
the large dry dome gives you greater control to get a clean
and other 67mm threaded wide angle lenses
Weight: 55
Range 0 ℃-40 ℃/32 °F-104 °F Material Corrosion resistant aluminum alloy Color Teflon-molybdenum coating/charcoal gray Accessories Vacuum pump
Athena Focus Gear for Canon EF 16-35mm f/2.8L II USM Lens @focustargetlight The onboard pressure sensor changesThis focus gear enables manual focus adjustment for the Canon EF 16 35mm f 2. 8L II USM lens via the Athena Extension Ring 60 with Focus Knob when used with Sea&Sea MDX series or Nauticam dSLR housings. The focus gear is useful in the following situations: * When you shoot fast moving subjects, like dolphins under limited ambient light (dark environment), so auto focus does not function effectively. * When you shoot half in half out photos and would
