This is an 8 inch dome with acrylic optic for fisheye lenses.
Dimension: outside diameter 220mm 197mm (H) ( 8.6 inch diameter, 7.7 inch high)
Depth rating: 100m
Weight: appro. 950G
Construction: Hard anodised aluminum alloy body
Includes the lens shade and a neoprene port cover.
Learn more about selecting Nauticam ports, extensions, focus and zoom gears with these charts:
Ports and gears for Canon cameras
Ports and gears for Nikon cameras