Speedlite 480EG

Dates back to pre-EOS days. Gives choice of TTL or external sensor metering with EOS cameras. Attaches to the camera via a bracket rather than the hot-shoe. Guide number of 48 (ISO 100m). Supplied with wide and tele panels to alter coverage. Worth considering if you want a flash gun for EOS and non-EOS models.

EOS magazine, December 2003, page 39

Type: grip-type automatic electronic flash unit with TTL automatic flash exposure control, external automatic flash exposure control, manual flash also possible
Guide numbers: 48/160 (at ISO, m/feet)
24/80 when used with wide panel 480 EG-20
68/224 when used with tele panel 480 EG-135
Switchable between 48/160, 24/80, and 12/40 (at ISO 100, m/feet) in manual operation
Flash recycle time/number of flashes:

The numbers above are for full power flash in manual operation. The use of TTL or external automatic flash exposure control may reduce the recycling time to as little as 0.2 seconds, and may increase the number of flashes up to 7 times the number of full power flashes
Illumination angle:
Standard:
Covers the angle of view of a 35mm lens
When used with wide panel 480 EG-20:
Covers the angle of view of a 20mm lens
When used with Tele Panel 480 EG-135:
Covers the angle of view of a 135mm lens
Colour temperature: Daylight balance (approx. 5500° K)
Flash duration: TTL automatic flash exposure control:
1/20,000~1/850 sec.
Manual flash control:

Dimensions:
480 EG with clamp EG and bracket EG:
291(W) x 256.5(H) x 114.3(D)mm
Weight:
480 EG with clamp EG and bracket EG:
1065g