Okay, I'll ask:Cameras that used film needed black bodies to better protect the sensitized film, against stray light Since pretty much all the pros were using black colored bodies, black became synonymous with "professional" .... This just continued on to the digital world ... also, black generally is considered "professional" even in other fields e.g. wearing a black suit is generally considered "serious and professional" ... but I don't think any technical aspect stops manufacturers from producing colored DSLR's, other than the fact that most people will not opt for colored DSLRs ... I know I would never buy a white, pink, green etc DSLR bodies ... so I suppose it is just a marketing decision now.
Why are cameras black, anyhow?