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Specifications
Type: Energy-saving, automatic, electronic flash
unit uses A-TTL metering system to measure light
reflected from the film surface. Clip-on type with
directly coupled contacts. For exclusive use with
EOS cameras.
Guide Number (at ISO 100):
Zoom position (mm)
28
35
50
70
Normal flash
22
(73)
25
(83)
28
(93)
30
(100)
Rapid-fire flash
5.5-15.5
(18-51)
6.2-17.7
(20-59)
7-19.8
(23-66)
7.5-21.2
(25-70)
(The above figures in parentheses indicate the
guide numbers in feet at ISO 100.)
Flash Coverage Angle: Covers more than the
fields of view of 28mm, 35mm, 50mm and 70mm
using auto internal zoom mechanism.
Recycling Time:
Alkaline
Ni-Cd
Normal flash
Approx. 0.3 to 8 secs
Approx. 0.3 to 6 secs
Rapid-fire flash
Approx. 0.3 to 1 sec
Approx. 0.3 to 1 sec
Number of Flashes:
Alkaline
Ni-Cd
Normal flash
Approx. 200 to 2000
Approx. 65 to 650
Based on flash firing at 30 sec intervals with new
alkaline or fully-charged Ni-Cd batteries.
Flash Duration: 1 msec or less
X-sync. Shutter Speed:
EOS 620
EOS 650
Setting
P
1/60-1/250sec
1/60-1/125sec
Automatic
TV
30-1/250sec
30-1/125sec
Manual
Av
30-f/250$ec
30-1/125sec
Automatic
M
30-1/250sec
30-1/125sec
Manual
Flash
Control
System: TTL
series
control
system with preflash function.
Flash Exposure Level Control: A maximum of
1.5 BV steps in the A-TTL mode when subject
brightness is more than BV5 according to the
camera's metering system.
Film Speed Setting: Automatically set by the
camera.
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