>>3322298Focus indicator, ISO, WB, are mostly shit. ISO is probably the worst not simply due to it being used incorrectly, but because anything past ISO-800 is like pointillism art. The focus indicator and WB don't work around f/8 and WB doesn't work well when ramping up the exposure speed when you want to do some exposure bracketing. I use PreWB for things done in the dark or set it by hand when it can't do proper WB for the Pre image.
"A" on the D3400 just means "Auto" for everything. There's no "Av", but you can select aperture priority if you want in the menu system by turning it to "A" then turning the rest of the stuff you don't want to be Auto to manual in the menu. It takes quite a while to do that, but saves the setting for you unless you leave the battery out for too long or reset everything. "M" is similar in that everything is Auto until you turn it to Manual which drove me insane when I first got it because the menu system is scatterbrained in design.
Basically, everything is better in full manual with Auto WB until you get into tighter apertures or low light.
