Howshot M67 Mount Base 107P for Ikelite Flat Assembly Vacuum System the Optical YS Converter achieves

the Optical YS Converter achieves far greater accuracy in TTL exposure/output

Equipped with INON ZD Mount bayonet system with additional locking feature to support easy and speedy lens exchange as well as reliable installation of INON UFL-G140 ZD underwater semi-fisheye conversion lens

Wide Red Filter LF-S]

Teflon-molybdenum coating/charcoal gray

Optional "Dome Wide Filter LF-W" widens the coverage further to approx

Howshot M67 Mount Base 107P for Ikelite Flat Assembly Vacuum System the Optical YS Converter achievesHowshot M67 Mount Base 107P can be installed on a Ikelite Flat Assembly. The M67 thread mount can be used to install an close up lens for quick switching.