Super Fisheye 1.8mm Lens Attachment for Ricoh 6mm lens

Super Fisheye Lens 0.3X (37mm) attachment for the Ricoh 6mm f1.2 C-Mount Lens

Equivalent to approximately a 1.8mm fisheye lens (Covers Super 8mm)  

Good to use on Beaulieu Super 8mm C-Mount Cameras

Requires Ricoh 6mm lens ,  40.5mm-37mm step down ring & .025 shim not included