Nikon 1 J5 Reference Manual page 127

❚❚ Flash Modes
The following flash modes are available:
• N (fill flash): The flash fires with every shot.
• NY (red-eye reduction): Use for portraits. The flash fires with
every shot, but before it fires, the red-eye reduction lamp lights
to help reduce "red-eye. "
• NYp (red-eye reduction with slow sync): As for "red-eye
reduction", above, except that shutter speed slows automati-
cally to capture background lighting at night or under low
light. Use when you want to include background lighting in
portraits. Available only in modes P and A.
• Np (fill flash + slow sync): As for "fill flash", above, except that
shutter speed slows automatically to capture background
lighting at night or under low light. Use when you want to cap-
ture both subject and background. Available only in modes P
and A.
• Nr (rear curtain + slow sync): As for "rear-curtain sync", below,
except that shutter speed slows automatically to capture back-
ground lighting at night or under low light. Use when you want
to capture both subject and background. Available only in
modes P and A.
• Nq (rear-curtain sync): The flash fires just before the shutter
closes, creating a stream of light behind moving light sources
as shown below at right. Available only in modes S and M.
Front-curtain sync Rear-curtain sync
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