M26-M42 ROBOT M26 x1 Female To M42 Male thread Screw Camera Lens Adapter

M42-M58 M42 x1 Female To M58 x1 Male thread Screw Camera Lens Mount Adapter

M42-M43 6mm Modify Adapter For M42 large format Lens to Micro 4/3 M4/3 Camera

RMS-M26 Flange Adapter RMS Thread to M26 x0.75 mm for microscope objective

42mm-52mm M42 x1 Female To M52 x1 Male thread Screw Camera Lens Mount Adapter

RMS(.8"X 36tpi) To M42 x1mm Adapter For Microscope Objective Micro Photograph

Flange M42 x1 Female To M58 x1 Male thread Screw Camera Modify Lens Adapter

RMS Adapter Microscope Objective Lens to M42 Canon EF EOS DSLR/SLR Camera