Autocorrect RAW in Adobe Photoshop looks good. And certainly on a 4k monitor the DSLR images reveal more detail.
My post here has me realizing I need to take iPhone and DSLR shots side-by-side in the same place with the same lighting and begin to compare them in-camera and in post-processing.
Popular notion is that at f/11 only will diffraction start to affect you, but with modern high resolution cameras diffraction starts to creep in as early as f/9, so f/5.6 is generally best unless you really need the deeper field. You're probably going to be fine at 24MP, though.
this is bad advice.... shoot on a tripod and set your f stop to get the DOF you need or do a focus stack, f/5.6 would work if your shooting a distant landscape but having anything in the foreground f5.6 would not be enough, i usually stay at around F10 any higher i don't like because diffraction starts to reduce image quality and if i need more DOF i just focus stack
for ISO set it to 100 or what ever your cameras base ISO is
then adjust your shutter speed until you get correct exposure
As for the exposure you can just use aperture priority with your ISO set to the base ISO. On a Nikon camera you'd actually want to be at 64. If the scene doesn't have challenging highlights then going under the base ISO or overexposing will provide even better results.