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The Zen DP-230 230mm (9") Optical Glass Superdome port is the solution for photographers using rectilinear wide angle lenses like the Canon 16-35mm f/2.8 L, Canon 16-35mm f/2.8 L2, Canon 17-40mm f/4 L, Nikon 16-35 f/4 VR, and the Nikon 17-35mm f/2.8. This newer version has a larger internal diameter which is wide enough to accommodate the new Canon 11-24mm F4 super-wide angle lens.
A 9-inch (230mm) glass dome port is also best choice for over-under (split) shots/ The large diameter of this dome port assures a thin water line for split shots, and the glass surface minimizes water beads collecting on the dome port.
The interior of the dome element is coated with an anti-reflective coating to minimize internal reflections from camera lenses, lettering on cameras, etc., which can be a problem in bright ambient light.
The exterior is treated with a proprietary scratch resistant coating to control lens flare. The result is an incredible 99.7%+ transmissive rate for distortion-free images.
Please refer to Zen Port Chart
We dive with our products all the time. Please call the Bluewater Photo team at 310-633-5052 with any questions, or email us at firstname.lastname@example.org
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