Determining aperture, Ttl mode, For ttl automatic flash exposure control) – Nikon SB 20 User Manual
Page 26: In ttl mode
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DETERMINING APERTURE----------------------------------------
TTL Mode
(for TTL Automatic Flash Exposure Control)
TTL mode is for exclusive use with Nikon F-501/N2020, F-401/N4004,
F-301/N2000, FA, FE2, and FG cameras only.
For TTL auto flash operation with the Nikon F-501/N2020, F-401/N4004,
or F-301/N2000, be sure to set the camera to aperture priority auto or
manual exposure mode.
For correct exposure in TTL mode, use film with a film speed specified in
the table below:
Camera
Film speed
F-501/N2020 and F-301/N2000
ISO 25 to 1000
F-401/N4004, FA, FE2 and FG
ISO 25 to 400
i Set SB-20’s mode selector
' ■ to TTL.
To determine aperture with the SB-20’s aperture selection/shooting dis
tance range panel for TTL auto flash operation, read the following :
(For programmed TTL auto flash operation, see pages 10 to 11.)
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