Special lens mount designed for 52mm wide-angle and fisheye lenses like the Weefine WFL-02 and WFL-04. 

Notice: This is NOT an M52-M67 step-up ring. Works with some other brands like UWL-04 M52)

Features

• Allows the use of Weefine fisheye lenses on 67mm standard housing ports. 
• Unlike a normal step-up ring, the Weefine M52-M67 lens adapter mount does not add distance between the lens and the port.
• Eliminates reduces vignetting and keeps the image sharp as possible. 
• Does not work with any 67mm lenses, Weefine Smart Housing or the Smart Housing M52 Lens mount.