Features:_x000D__x000D_Techart LM-EA7 can be connected here to become a auto adapter ring. _x000D_You can transfer the lens of early L39 screw lens to the M mount camera body for use with it. (For Leica M series paraxial camera, for EPSON RD1, ZEISS IKON ZM BESSA M, and present leica M8/M9/M9P/M(M240)/M-P, etc) _x000D_Lens and ring are closely connected without gaps and frames. _x000D__x000D_Specification:_x000D_Options: 50-75, 35-135, 28-90_x000D_Color: Silver_x000D_Material: Alloy_x000D_Adapter ring type: L39 screw for LM, VM camera_x000D_Lenses available: All L39 lenses_x000D_Camera body: for LEICA LM,ZM VM and all M mount cameras_x000D_Installation: rotation buckle type_x000D_Dimensions: Approx. 5*4*1cm / 2*1.6*0.4in_x000D_Weight: Approx. 19.2g_x000D__x000D_Parameters:_x000D_28-90 suitable for 28mm and 90mm lenses_x000D_35-135 suitable for 35mm and 135mm lenses_x000D_50-75 suitable for 50mm and 75mm lenses_x000D__x000D_Package List:_x000D_1 x Adapter Ring_x000D__x000D_Note:_x000D_Three different connectors for different focal length lenses. 1Techart LM-EA7 can be connected here to become a auto adapter ring. 2You can transfer the lens of early L39 screw lens to the M mount camera body for use with it. (For Leica M series paraxial camera, for EPSON RD1, ZEISS IKON ZM BESSA M, and present leica M8/M9/M9P/M(M240)/M-P, etc) 3Lens and ring are closely connected without gaps and frames.