Leica M10 Eyepiece Thread Adapter - Compatible with Leica M10/M10-P/M10-R Cameras - Precision Machined Brass Mount - Perfect for Macro Photography & Viewfinder Accessories

The thread adapter is supplied with a special tool for mounting it on the camera. Once mounted, Leica correction filters from previous M cameras with smaller diameters can be mounted on the M10. The Thread Adapter also enables the use of the Leica Angle Finder M and the viewfinder magnifiers on the Leica M10.