Canon 420 EZ - Manual (Page 63)

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 Table (at ISO 100);
Zoom position (mm) 24 28 35 50 70 80
Normal flash
25
(83)
27
(90)
30
(100)
35
(116)
40
(133)
42
(140)
Rapid-fire flash 1/2 to 1/16 of that for normal f ash
Manual flash
1/1
25
(83)
27
(90)
30
(100)
35
(116)
40
(133)
42
(140)
1/2
17.7
(59)
19.1
(63)
21.2
(70)
24.7
(82)
28,3
(94)
29.7
(99)
1/4
12.5
(41)
13.5
(45)
15
(50)
17.5
(58)
20
(66) 21
(70)
1/8
8.8
(29)
9.5
(31)
10.6
(35)
12.4
(41)
14.1
(47)
14.8
(49)
1/16
6.3
(21)
6.8
(22)
7.5
(25)
8.8
(29)
10
(33)
10.5
(35)
1/32 4.4
(14)
4.8 5,3
JIZL
6.2
(20)
7.1
(23)
7.4
(24)
(The above figures in
guide numbers in feet parentheses indicate the
at ISO 100.)
Flash Coverage Angle: Covers more than the
fields of view of 24mm, 28mm, 35mm, 50mm,
70mm and 80mm using auto internal zoom
mechanism. Manual switchover possible.
34