Nikon N4004s User Manual
Page 22
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
1 ) Very dark subject
Focus manually, or for autofocus, focus on another, brighter
subject located at the same distance, or use accessory Nikon
Autofocus Speedlight SB-24, SB-23, SB-22 or SB-20. (No other
flash unit can be used.)
2) Low-contrast subject
Focus manually, or for autofocus, focus on another subject
located at the same distance—but with more contrast—until
the green focus indicator LED appears.