This tip comes handy while shooting images like above in in-camera crop modes.
I struggled for 2 years to get this info, finally thanks to http://photographylife.com for posting this.
So posting this for everyone’s benefit who shoots in crop modes (5:4, 1.2X, 1.5X) in Nikon DSLRs like Nikon D800(E)/810 etc.
Go to the Custom Setting Menu and to the setting “a6 AF point illumination” and set it to “OFF”.
This will make it a lot easier to frame subjects by blurring the area outside the cropped frame and making it appear darker.
In some cameras/without latest firmwares like mine, it was “a5”. So please check in Menu “a” for this setting.