Each is manufactured from crystal glass and features Sea & Sea’s bayonet mount with security lock. The manufacturer’s internal correction lenses can be combined with some lenses. The Optical Dome Port 11 230 is a 230mm-diameter model said to be suited to shooting ambitious half-and-half shots, and costs £3330. The 11 165 is a mid-size dome priced at £1910, while the 11 100 is a compact model that comes in three versions for specific fisheye lenses, and is said to be good for travelling and wide-angle macro photography – this one costs £1366.
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