I was talking with a guy a few weeks ago about cameras.. in his late 20s/early 30s I'd presume.. he said he shoots with Canon and an assortment of L glass.
I said I use Pentax when he asked.. and somewhere along the convo I mentioned I was once shocked by a flash I opened.. he was dumbfounded. Kept asking if they still make Camera Flashes.. even said 'Flashgun'.. and back and back again to ask me who makes my camera Flashes (Pentax).
Long story short, he thought I somehow meant flash with the cubes or the old once-use bulbs -- I think the guy was under the impression I was a oldddd timey film shooter. Which makes me wonder, since I made no mention of film just 'Pentax', if he even realizes Pentax is alive and makes digital camera bodies.
Then that got me to thinking about how many photographers don't even realize Pentax still exists and is producing modern (digital) cameras..
Canon (and Nikon to some degree) did such an incredible job with marketing that it is similar to Coke vs Pepsi.. there is no (serious) third or fourth.. and, in some cases, people just use the term 'Coke' to mean 'Soda/Pop.' Serious brand dominance.