Stop-down exposure metering – Nikon F4 User Manual
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
Stop-Down Exposure Metering
For lenses and other systems without automatic
When the automatic diaphragm ring does not couple with the
meter coupling lever of the camera, such as when using a
PC-Nikkor reflex mirror or bellows attachment, focusing should
be done with the lens wide open while exposure measurement
and shooting must be done with the lens stopped down.
In A mode;
Take the picture with the lens stopped down. With a PC-
Nikkor, correct exposure must be determined before
shifting the perspective. To do this, first use the AE Lock;
the lens can then be shifted to take the shot.
In M mode:
Stop down the lens to determine the correct exposure, then
take the picture.