Angenieux Extender x2
The Angénieux Extender x2 comes at the rear of the Angénieux Optimo and Optimo Style zoom lenses.
It allows to multiply the focal lengths of the lenses by 2 to obtain tighter shots with minimal light loss (as low as 0.9 stops). It doesn't work with DP Zooms.
The extenders can also be used to expand the rear coverage of the Angénieux zooms. As such, the Optimos and Optimos Style lenses can be used with sensors larger than the Super35 format, like the ALEXA in Open Gate or the RED in 6K FullFrame.
You can also purchase this product at PhotoCineShop.