Pure Black Camera Calibration Tool

This model was inspired from the SpyderCube. Check out that product at https://www.datacolor.com/photography-design/product-overview/spydercube/ and consider buying it instead.

I own the SpyderCheckr SCK100 already, which I'd say is well worth buying, but I wanted a way to measure "pure black" like you can with the SpyderCube.

The design I made here is simpler concept of the SpyderCube, with the goal just being to just capture pure black; nothing else is being considered.

Print this out in either black material or spray paint it all black with matte paint when done.

The hole on the underside is my attempt at making something as black as possible. Light can go in, but can't come out easily. If you want to top this all off with a chrome ball bearing you can probably capture highlights, like they do with the SpyderCube, but I've never needed to concern myself with that. I just want black levels and already have a grey card for white balancing.

I kept the design a cube, givi