Adapter to fit 40-mm diameter lens into 2 inch mounts

thingiverse

Motivation: A notable limitation exists with some lenses being available only in a 40 mm diameter, which is relatively rare. Nevertheless, most optomechanical mounts are designed to accept optics with diameters of either 1 inch or 2 inches. Solution: This straightforward adapter enables a 40-mm diameter lens to be securely accommodated within the confines of a standard 2-inch optomechanical mount. The ring's design allows for effortless insertion and removal of the lens, ensuring seamless integration. For optimal performance, apply a judicious amount of adhesive or wax between the lens edge and the adapter, thereby preventing any potential slippage.