Canon 540EZ - Manual (Page 53)

Specifications
Type Clip-on type automatic flash unit with direct-cou­
pled contacts (including AF auxiliary light corre­
sponding to 5 focusing points, A-TTL pre-flash,
auto zoom and bounce functions)
Guide Number (ISO 100 ■ m) (See page 30)
Battery Life and Recycle
Times
(See page 30)
Flash Duration 1.2 ms or less during normal firing; 2.3 ms or
less during quick firing.
Coverage Angle (1) Auto zoom mode: Automatically set accord­
ing to focal length of the lens in use (set­
tings: 24, 28, 35, 50, 70, 80, 105)
(2) Manual zoom mode: Manually set by press­
ing the zoom button.
(3) Wide panel: Flash coverage for super-wide-
angle lenses down to 18 mm is possible by
covering the flash head with the built-in wide
panel.
Flash Modes (1) Normal firing;
(2) Quick firing;
(3) Stroboscopic flash: stroboscopic frequency
and no. of bursts each settable in 31 steps;
(4) Pre-flash: for measuring A-TTL distance
information;
(5) Test firing: by pressing the test firing button