Attaching teleconverter to camera body, To attach, To remove – Nikon AF-S TC-20E III User Manual
Page 17: Determining exposure
Attaching teleconverter to camera
Make sure that the camera's power is turned off and
avoid direct sunlight.
Attach the camera to the lens/teleconverter assembly
so that the camera's mounting index is aligned with
the teleconverter-camera index on the teleconverter.
Taking care not to press the camera's lens release
button, turn the camera body counterclockwise (with
the camera body facing away from you) until it clicks
• If your camera has a lift-up meter coupling lever,
make sure that the meter coupling lever is correctly
positioned. (For details, see your camera User's
While pressing the lens release button on the camera
body, turn the camera body clockwise (with the
camera body facing away from you) until the
teleconverter-camera index is aligned with the
camera's lens mounting index.
Using this teleconverter with a lens decreases the
effective aperture by two stops.
• With AI-type cameras with/without CPU contacts:
Determine exposure in the same manner as using
the prime lens only. (However, exposure cannot be
determined with the G-type lens.)
• With non-AI-type cameras: Perform stop-down
method. (However, exposure cannot be determined
with the G-type lens.)
• See your camera User's Manual for available
exposure modes and metering systems.