When I look at the inside of the spacer rings and parts, they are black inside, but it's shiny black.
As far as my understanding goes, the last thing we want is the light to bounce around the imaging train so it's a reason why even the cheapest telescopes have flat /matte black finish with baffles, to minimize light reflection.
On the other hand, most of these spacer rings and extensions are shiny and they are the closest to the sensor.
Wouldn't it make sense to buy a flat black paint and lightly spray inside of them, to cut any chance for the light to cause weird effects ?
Or, has anyone done anything similar or is this something too insignificant and it'd be a waste of time for little benefit?