Tele-convertion lens x2 for Samyang T2 lenses

Samyang tele convertion lens allows to double a focal lenght of the lens. Easy to mount. It goes between the lens and T2 adapter.

Converter is made of high quality optical glass covered with anti reflecting layers.
Important!
Usage of this converter causes a light loss. F.e. F/8.0 lens with converter will work like f/16,0