Camera Flash / Speedlight: Sigma EF-530 DG ST Flash Unit Flashgun For Canon
Model Name: Sigma EF-530 DG ST Flash Unit Flashgun For Canon
Image:Sigma EF-530 DG ST Flash Unit Flashgun For Canon
Fivercam Price (used) UK
eBay Price (used) UK
Release DateJuly 2007
Strenght / Power
Guide Number (ISO100, meters) Flash Specs 92' (28 m) at 24mm 132' (40 m) at 50mm 174' (53 m) at 105mm
Power Level Switching (Vari-power Range)1/1, 1/16th
Head & Coverage
Bounce (Up-Down) Head Movement90° up, 7° down
Swivel (Rotation) Head movement90° to right, 180° to left
Focal Length Coverage Flash Specs 84° to 23° (24-105mm lenses in 35mm format) 103° (17mm with Wide Panel supplied)
Auto Zoom Head Flash Specs 24-105mm auto-zoom (flash senses focal length & adjusts)
Flash Related Functions
Flash Durations Flash Specs about 1 / 700 sec
Flash Modes(TTL) Flash Specs Yes (E-TTL II)
Flash Exposure Compensation / Correction Flash Specs
Secondary Illumination Flash Specs
Wireles Flash
Wireless Operation Flash Specs
Wireless Groups Flash Specs
Wireless Channels
Remote Timing Modes
Other Features
MountHot-shoe mount flash
Off Camera Terminal / External ConnectorsNone
Included Accessories
Other Functions
Power Source & Recycle Time
Power Source - BatterryFour 1.5-Volt "AA" batteries (alkaline, lithium, NiCad & NiMH)
External Power
Minimum Recycle Time (Charging time between shooting) Flash Specs 6 seconds (based on fresh alkaline batteries & full power) 4 seconds (based on fresh Ni-MH batteries & full power)
Battery Life Flash SpecsBattery lasts / shots per battery Approx. 220 flashes (when using alkaline batteries) Approx. 100 flashes (when using NiCd, Ni-MH batteries)
Dimensions & Weight
Dimensions3.0 x 5.5 x 4.6" (76 x 140 x 117mm) WxHxD
Weight10.8 oz (305 g)
More Details or Support Website: Link
Item 1
Fivercam Wiki information:

There are three ways to trigger off-camera flash units wirelessly: via infrared, radio signals or a hybrid method that involves both infrared and radio. The infrared system works like the TV remote; there need to be a direct line of sight for the signal to reach the destination. The radio signal has no line-of-sight limitations, but comes at a rather high cost. The hybrid system simply takes the infrared signal from the commander, converts it over to radio and then converts it back to infrared on slave units.

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