Upload & Sell: Off
Sometimes, with some clients, I think you just can't win unless the camera is a) big and b) says "Canikon" on it. Its the only brand name many have heard of and even if it says "Phase One" or "Alpa" on your gear, you'll run across someone thinking its some "no-name" brand and your a hack who isn't worth the money.
Ironically same clients can rave about how much they love the images, even when you shoot 90% of the day with a Nikon V1 you picked up for $250 a few days earlier.
Bottom line is that the camera your using really doesn't matter, except when it matters
I will say though that to some degree I think clients (and other photographers) are getting a little more open minded to other brands.
I mean just a few short years ago showing up with a Sony, even if it was a rather nice FF 24meg state of the art camera would draw some raised eyebrows and under the breath comments about it being a "toy".
We've come a long ways, and now even a smartphone can pack 41megs, so you can't always judge a book, or in this case a camera, by its cover/size/logo, but there are a lot of naive (to put it kindly) photogrphers/clients/people in the world still
I'm sure every Sony RX1 user has been out and had at least one DSLR shooter make a smug comment about how their entry level APS-C DSLR is a better tool than "your point and shoot", I know I have and its like...ummm, this is a $2800 24meg full frame camera with an amazing Zeiss Sonnar and some of the best high ISO performance of anything on the market, you've got a 3 year old DSLR that is worth maybe $400 and plastic kit lens buddy.....
But sometimes its just easier to smile and nod and say "yeah, I might upgrade to one of those DSLR's sooner or later" and walk away