I was curious as to why you can change the settings on your full frame camera quicker than on your crop sensor camera? And what some of the extra features are? 🙂
In short, there are a lot more buttons! an advanced crop will have a similar array of buttons.
So for example to change from auto iso to fixed iso, on my D5300 I had to hit something like: “menu, up, up, up, right, down, right”, for a total of about 10 seconds. On my D750 I simply hold down ISO and scroll once with the front scroller, so less than 1 second. Same thing with white balance, focus mode and focus type. It takes less than a second to change shooting modes (single, continuous high/low, quiet, mirror up, time delay. Under manulal mode I have two scrollers, one for aperture, one for shutter speed.
Using the presets I can almost instantly switch from Aperture mode with a 3 frame bracketing, +1 exposure bias, auto ISO off, f/8, cloudy white balance, to manula mode with f/4, ISO 800, auto ISO off, 1/60, auto white balance, to aperture mode with ISO 100, auto ISO on, auto white balance, f/2.8, to my flash maual mode with f/5.6, 1/180, auto iso off, flash white balance.
So in short, it can make the difference between getting the picture and getting a good picture. Or it can make the difference between getting the picture and not getting the picture.
Oh, and I have two memory card slots. Yes, I have had several memory cards fail on me, especially when it is cold.