Baffled Lens Hood

Original is 84mm interior. So divide the external diameter of your lens by 84 and use that number for scaling.

Example, 51mm lens 51/84 = 0.6, so scale to 60%.

There is no tolerance between the inserts and the lens hood, so best to print the inserts at 99.5% to 99.7%.

Best used on longer lenses to reduce stray light.