Nikon F100 Instruction Manual page 51

Locking aperture
To lock aperture set at step 2, rotate
the Sub-Command Dial while pressing
the shutter speed/aperture lock button
— so aperture lock indication ¬
appears in the LCD panel and
viewfinder. To release the lock, rotate
the Sub-Command Dial while pressing
the shutter speed/aperture lock button
— so aperture lock indication ¬
disappears in the LCD panel and
viewfinder.
3 Compose picture, focus and shoot.
• When the subject is too dark or too bright, one of the following warnings
will appear in the LCD panel or viewfinder. (Electronic analog exposure
display will also indicate the amount of under- or overexposure.)
H1
• : Select smaller aperture (larger f-number). If the warning indication
persists, use an ND filter.
Lo
• : Select larger aperture (smaller f-number). If the warning indication
persists, use the Speedlight.
· 2: Shutter speed/aperture value displayed in the LCD panel and
viewfinder can be set to change in steps of 1/2 or one (page 71).
51