The Nauticam WWL-1 wide wet lens has an equivalent weight underwater of 0.62kg.
With the buoyancy collar mounted, the equivalent weight is reduced to 160g / 5.6 ounce.
The WWL-1 is supplied with a neoprene dome cover. The neoprene cover CANNOT be used satisfactorily on the WWL-1 when the buoyancy collar is installed. The Nauticam Hard Cap for WWL-1 may be used with, or without, the buoyancy collar installed.