Speedlite 580EX II

 

Other Speedlite 580EX II features include improved communication reliability through direct contacts and silent recycling, up to 20% faster compared to its predecessor, the 580EX. The Speedlite 580EX II is completely inaudible and operates in breathtaking silence and speed.

 

 

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Speedlite 580EX II

This can seem tricky, since simply pressing the flash unit’s Mode button will not call up the external flash options.  To do this, you must activate the Canon 580EX II ’s flash custom functions.  With the EOS-1D Mark III camera, this is easy – you can do it from the Speedlite 580EX II camera’s Menu (2nd Set-up Menu > External Speedlite Control > Flash C.Fn settings > 3: External metering: Manual.).  Don’t be fooled by the wording on the Mark III’s menu;  this is still automatic exposure flash, using the flash’s external metering sensor.  It’s not manual flash exposure – that’s done with the flash’s Manual mode!

 

1.  Press the illumination/C.Fn button on the back of the Canon 580EX II for at least two seconds until the Speedlite 580EX II’s display changes.
2.  Turn the flash Canon 580EX II unit’s control dial until “Fn 05” (speedlite Custom Function 5) appears.
3.  Press the Canon 580EX II speedlite’s SET button to make the second digit blink on and off;  while it is blinking, turn the control dial on the Canon 580EX II flash unit until option 3 appears (Fn 05-3).  By doing this, you have now set the flash to perform standard, traditional external flash metering. This can be done with any EOS SLR, film or digital.

580 EX II

Again:  in spite of “Manual” appearing in the wording, this mode does indeed provide automatic flash exposure, using the Canon 580EX II Speedlite ’s external flash sensor.  “Manual” means that most communication between flash and camera no longer takes place, and the user must make the settings detailed below.
Once set, a letter “E” appears in the upper-left corner of the flash’s LCD panel (if “E-TTL” still appears, you didn’t set external automatic flash control...try again).  You’ll also see an ISO indication, and the aperture (“F-5.6” or whatever aperture number the flash is currently expecting).  Below this is a distance range scale, in either feet or meters (change it to feet with flash Custom Function 0-1).

 

Like traditional auto flashes, when the Canon 580EX is set to the External Metering: Manual, the flash has almost no communication with the camera body.  The only exception is that you’ll still get a ready light in the finder, and the auto zooming of the flash head to match the lens in use still functions with EOS digital SLRs.  The photographer must set the following manually:

a) ISO on the Speedlite 580EX II
b) Aperture on the Speedlite 580EX II’s LCD display

 

 

 

 

 

Once these are set by the user to match the camera’s settings, the Canon 580EX II Speedlite flash’s distance scale will update to show you the distance range you can shoot with automatic flash control.  The flash’s zoom head will adjust automatically to match the focal length of the lens in use. The Canon 580EX II Speedlite camera should be set to its Manual exposure mode in most circumstances.  Since the flash and camera are not working in tandem to control overall exposure automatically, it is risky to set Av mode and hope to properly expose the ambient light along with flash illumination.  Generally, a fast sync speed like 1/200th or 1/250th of a second is used;  it is impossible to set faster shutter speeds if the speedlite is on.  Hi-speed flash sync mode will not operate in external automatic flash mode. Ignore the camera’s analog metering scale in the viewfinder – it is reporting how your current settings would expose ambient light, not flash.

Where to Buy Canon 580EX II

 

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