Flash Power Lock - Nissin Di700A Instruction Manual

Flash Power Lock

When the back ground of the main subject is too bright, the
camera's exposure reading system adjusts the flash light intensity
for such back ground condition and it results in the main subject
being underexposed. Or in case the main subject is not placed in
the center of the viewfinder, the flash picture may result in the aimed
targeted subject being under or over exposed.
You can lock the correct flash exposure for the targeted subject in
such a condition. This flash exposure pre-set remains locked in,
even if you change the aperture or zoom the lens in and out. This
mode can only be set on the camera.
With Canon cameras:
Focus the subject.
Aim the viewfinder center over the main
subject and press [ ] button on the
camera (or [ FEL ] button on some
cameras).
Pre-flash is fired to pre-set the correct light
amount for the main subject.
Remarks: FEL only works on P, TV, AV, M
& A-Dep mode.
(It depends on different type of camera, please check you camera
instruction manual.)
With Nikon cameras:
Set the Fv lock mode at the menu on your
camera.
Focus the subject.
Aim the viewfinder center over the main
subject and press [ AE-L ] button on the
camera (or [ AF-L ] button on some
cameras).
Set the picture frame as you desire and release
the shutter.
(It depends on different type of camera, please check you camera
instruction manual.)
FE lock
Fv lock
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