Which is where the unconscious bias comes from. It didn't mean researchers were all KKK members, just that they internalized the idea that black people weren't

Which is where the unconscious bias comes from. It didn't mean researchers were all KKK members, just that they internalized the idea that black people weren't worth considering as they were all poor second class citizens anyways, so who would ever bother taking a picture of them? But this inequality was the result of purposeful economic discrimination by the faction of people that were indeed part of the KKK To answer your question, though, you would want your camera to work for dark skin in case your white customers want to photograph an African American. I see no reason why that should be disallowed even in a racist society. But again, that was an oversight as they didn't even consider that anyone might want to do that