Canon 420 EZ User Manual
Page 35
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When the shutter speed of 30" blinks,
the camera is warning that A-TTL is
impossible and the background will be
underexposed. The main subject,
however, will be exposed correctly
because normal TTL (see p.20) func
tions instead of A-TTL.
• A blinking shutter speed of 30" may
stop when a larger aperture is set. A-
TTL is possible but be careful of
camera-shake.
3. When the fastest possible X-sync shut
ter speed (1/250 sec with the EOS 620
and 1/125 sec with the EOS 650)
blinks, the camera is warning that
A-TTL is impossible and the back
ground will be overexposed. The main
subject, however, will be exposed cor
rectly because normal TTL (see p.20)
functions instead of A-TTL.
• A blinking shutter speed may stop
when a smaller aperture is set and
A-TTL is possible.