Nikon D3400 Triple Lens Parent's Kit Owner's Manual

65

Choose this mode to keep camera noise to a minimum. A beep 
does not sound when the camera focuses.

I (E/#) button.

J (Quiet shutter release).

Highlight 

J (Quiet shutter release) 

and press 

J.

Take photographs.
Press the shutter-release button all 
the way down to shoot.

I (E/#) button