Fisheye Lens Cover for Fuijnon f/1.8 2.7mm

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/8s7j6OaxvgK

This fits my fisheye lens, which requires a 55mm diameter lens cap. I suppose you could resize it to fit other fisheye lenses; maybe?

I printed it with a 15-% density zigzag support; don't know if I needed it, but didn't want to risk it.