birdstrike
Propera Explora!
For cheap
I want to test how robust the various optical surfaces (sensor, mirror, focusing screen, pentaprism) are to various forms of abuse, i.e. "cleaning" with various objects.
I want to test how robust the various optical surfaces (sensor, mirror, focusing screen, pentaprism) are to various forms of abuse, i.e. "cleaning" with various objects.