KIPON start to deliver world first M-M 2x optic extender，using Leica M lenses（75mm/90mm/135mm）on Leica M mount cameras，double the focal length，also works on different mirrorless cameras through combination with mechanic adapters，the optic system originally rehoused from our FF pro 2x extender for high end cine industry.
https://www.kipon-global.com/product-page/baveyes-extender-2x-m-m-1
