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I'm sure you're correct when it comes to people who are amateurs or very serious amateurs.
That isn't me.
I'm a professional photographer. I specialize in low light with movement. So the Nikon professional line is perfect for what I do. Those who also do what I do also use the professional line of cameras whether it's Nikon or Canon.
The main reason why I put this thread up is to find out if there were people on this board who had experience or was serious about the same type of photography I do and specialized in for over 35 years.
I do have friends who don't use the professional line. I see them struggle with their camera in frustration because their camera won't do what's necessary to get the shot. They see me take seconds to just get the shot and move on.
I believe the important thing is that the camera and equipment work well for the person using it. What one person may use well just might not work at all for someone else.[/QUOTE]
While not a full-blown pro, I make some cash selling art and photographing pageantry. The latter is why, since I started in '06, I've upgraded my gear consistently trying to acquire the best tool for the job (I'm also a carpenter/cabinetmaker/contractor so tools are a HUGE part of my life).
I bought a D5 when it came out, mostly for the sensor size, not necessarily the tiny gains in performance (I loved my D4...but it's gone, sniff). I can't begin to explain to the uninitiated how cool it is to "get the shot" in an instant...literally, I was at the local wetlands yesterday trying my hand at birds, talking with another photog, and suddenly a big egret took off; I was using a monopod for the D5 and a 200-500 f5.6 and the lens was over my shoulder at the time. I quickly brought it up, pretty much hand held at the time, and shot a quick burst. Later, at the 'puter, I wasn't very surprised that I'd gotten the entire takeoff. You *need* great gear to do that. So, I'm off on the mirrorless quest, too, and have had a Z6 since inception...it's my go to camera for just about anything else (well, now I have a Z7 too and *it* has its place, neh?) and I'm totally sold on the new Z lenses, I'm hoping to one day be able to do what the D5 will do, at least somewhat, but won't waste my time wishing. That D5 is the best camera I own, but it stays in its corral until needed for fast movers. So, the upshot is that every body I own has a purpose and I'm lucky to have a few great tools to do different jobs.