Me cuesta unos 80 euros.
This is a Digital E-TTL AF Bounce Swivel Zoom Substitute Flash for Canon 580EX
Features
* Red Eye Reduction
* Auto Focus / TTL Metering
* Digital Power Auto Zoom And Manual Zoom Flash Head From 24 / 28 / 35 / 50 / 70 / 85 mm
* Focus Beam To Assist In Low Light Conditions
* Illuminated LC Display
* Higher Guide Number 42m At 85mm Position
* Swivel Bounce Zoom Head : Horizontal Swivel Angle :
* 0° To 270°, Vertical Bounce Angle : 0°, 45°, 60°, 75°, 90° Five level Of Power Ratio :
* 1/1, 1/2, 1/4, 1/8 And 1/16 Automatic Shutter Speed Setting
* Built-In Reflecting Plate And Diffuser
* Built-In Slave Function
* Power Saving Function
Specifications
Guide Number ( ISO 100 ) 42 (m) / 138 (ft) At 85mm Position Motor Zooming Reflector 24 - 28 - 35 - 50 - 70 - 85mm Power Source 40 X 1.5V AA Size Alkaline Batteries Flash Duration 1 / 1,000 - 1 / 20,000 Second Recycling Time 0.5 - 9 Seconds Number Of Flashes 80 Times With Fresh Alkaline Batteries Color Temperature Daylight Dimensions Approx. 72 X 100 X 125 mm Net Weight Approx. 270 Grams ( W/O Batteries )