Reference Guide

Compatibility with other Canon SLRs:
The 430 EZ is especially designed for use with the EOS-I and EOS
630 cameras. With other Canon cameras, some features are not
available. As an example, the hot shoe lock pin is only used with
the EOS-1 and EOS 630. Other compatibility differences are as
follows:
EOS 620/650: Flash-Fill Ratio Control (Exposure
Compensation) is not possible.
EOS 750/850: Only Program ATTL is possible.
T90:
The following features are disabled:
1. AF Auxiliary Light
2. Aperture Value & Subject Distance Read-outs
3. Automatic Zoom
F-l (original and current), other T-Series, all A-Series, and
older model Canon SLR:
Only Manual Flash is possible. (No automatic flash exposure of
any kind.) Refer to Guide Number Chart (fig. IS).
Speedlice 430 EZ Main Specifications
Type:
Energy-saving, automatic electronic flash unit. ATTL metering
system measures light reflected from the film surface. Clip-on
type with directly coupled contacts.
Flash Duration:
1.5 milliseconds or less
Flash Coverage Angle:
Covers more than the fields of view of 24mm, 2Smm, 35mm, 50mm,
70mm,
and SOmm using an auto internal zoom mechanism. Manual
zooming is also possible.
Bounce Angle:
Upward: 0-90 degrees. Left: 0-lS0 degrees. Right: 0-90 degrees.
Flash Exposure Level Control:
Automatic: 0 to -1.5 EV based on available light, using exclusive
Canon program.
Manual: +/- 3 EV in 1/3 step increments.
Out-of-Coupling-Range Warning:
If the subject is too far away, the shutter speed and aperture
value blink in the viewfinder and on the camera's external data
display when the shutter release is pressed halfway.
Guide Number @ ISO 100, feet:
116 (w/zoom set at 50mm)
Flash Coupling Range:
Rapid-Fire Flash (green ready lamp): 2.3 - 16.4-45.9 ft. (min-max)
Full-Power Flash (red ready lamp): 2.3 - 62.3 ft.
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