Nikon 1 J4 Reference Manual

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If AF-S or AF-C is selected for Focus mode and the lens sup-
ports autofocus with manual override, you can focus using
autofocus and then keep the shutter-release button pressed
halfway and rotate the lens focus ring to fine-tune focus man-
ually. To refocus using autofocus, press the shutter-release
button halfway again.
To zoom in on the display for more
precise focus, press J (note that this
feature is not available during movie
recording or in slow-motion movie
mode). The display will be zoomed in
to the magnification selected in Step 1
and a navigation window will appear
in a gray frame at the bottom right of
the display.
Navigation window
Use the multi selector to scroll to areas
of the frame not visible in the display.
Press J to exit zoom.

Nikon 1 J4 Specifications

General

Sensor	CMOS
Sensor Size	13.2 x 8.8 mm
Image Sensor Format	CX
Image Processor	EXPEED 4A
Built-in Flash	Yes
External Flash	No
Storage Media	microSD, microSDHC, microSDXC
Connectivity	Wi-Fi
ISO Range	ISO 160-12800
Shutter Speed	1/16000 to 30 sec
Autofocus System	Hybrid AF
Number of Focus Points	171
Continuous Shooting Speed	Up to 20 fps with autofocus
Video Recording	Full HD 1080/60p
Screen	3.0 inch TFT LCD
Battery	EN-EL22 rechargeable Li-ion
Battery Life	Approx. 300 shots
Weight	Approx. 232 g with battery and memory card