Novoflex Leica M Lens to Leica SL/T Camera Body Lens Adapter Hum Eliminators It features two clip hooks

It features two clip hooks on both end for attaching to flashlights tailcap on one end and to a security loop on another end

Proprietary Zeiss hydrophobic and anti-reflection fully multicoated optics

5 cm) Accommodates Film or digital camera and accessories

Combine all three and you get 9x

The 18462 Port Extension Ring from Aquatica is for their bayonet style housings when using one of a variety of Canon

Novoflex Leica M Lens to Leica SL/T Camera Body Lens Adapter Hum Eliminators It features two clip hooksLeica M Lens to Leica SL T Camera Manual Adapter, No Function Transfer Maintains Infinity Focus This Lens Adapter from Novoflex enables the use of your Leica M lenses on Leica T and SL mirrorless digital camera bodies. The adapter features a durable, machined construction and has a manual design that does not relay any lens to camera communication, thereby requiring the use of manual focus, stop down metering, and either manual or aperture priority