Max Shutter speed
Nikon 1 J5 can shoot continuously at max speed of 20.0 fps
and has max shutter speed of 1/4000 sec
. J5 also has an electronic shutter which can shoot silently at max speed of 1/16000s
. One thing to keep in mind is that electronic shutter may cause rolling shutter / jello effects, and also banding issues under artificial light on your images.
Unfortunately J5 doesn't have an external flash shoe so you are limited with the built-in flash.
Nikon 1 J5 features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 171 points to choose from. Nikon 1 J5 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.