Nikon 1 J4 Reference Manual page 45

Attach a lens.
4
Be careful to prevent dust from entering the camera when the
lens or body cap is removed. The lens generally used in this
manual for illustrative purposes is a 1 NIKKOR VR 10–30mm
f/3.5–5.6 PD-ZOOM.
Remove the camera body cap
Keeping the mounting marks
aligned, position the lens on
the camera
Remove the
rear lens cap
Mounting mark (camera)
Mounting mark (lens)
s
21