Fantasea Bayonet Male for UWL-09 ProThe Bayonet Male for UWL 09Pro is a male bayonet that attaches to the UWL 09Pro Wide Angle Lens (Cat. No. 5158) and allows easily installing and removing the lens from the housing lens port or lens holder with a 1 4 turn*. Compatibility Designed for the UWL 09Pro Wide Angle Lens (Cat. No. 5158). For compatible female bayonets, please see the Bayonet Mounting System Chart below. * A compatible female bayonet must be installed on the housing lens port