How many watts is Canon 580EX II?

A 580 EX II speedlight is in the 60-80 w/s output range. You can use speedlights as studio lights with limitations.

What is the guide number for Canon 580EX II?

190
The 430EX has a Guide Number of 141′ (43 m) while the 580EX II has a Guide Number of 190′ (58 m) (both at 105mm).

How do I change the zoom on my Canon 580ex 2?

It is probably displaying “M Zoom 14mm”. It will display this, and the Zoom button will be unresponsive, as long as the wide diffuser panel is not fully stowed. Push it in until it clicks, then the display should revert to either “Zoom — mm” which is the auto setting, or “M Zoom — mm” for manual.

How do I set my Canon 580ex Speedlite to Ettl?

Setting the sender Unit and Shooting

Set the wireless mode to
Disable the sender units flash firing.
Press the button so that blinks.
Select the flash , turn the dial to select then press the button.
Set the flash ratio, turn the dial to set the flash ratio.

How many watts is a camera flash?

Speedlights produce somewhere between 60 and 100 watt seconds of power. Strobes produce 300 to 1,250 watt seconds of power. Even the smallest strobe head is significantly more powerful than your most powerful speedlight. In most cases, a strobe has at least five times more power.

Can you use a Canon Speedlite on Sony?

The Canon flash attaches directly to the Sony A7R III’s hotshoe without any issues. You can dip in to the custom functions of your flash, or you can use the flash in manual mode.

What do flash guide numbers mean?

The flash guide number (GN) is a measure of the distance at which the flash can illuminate a subject. The higher the guide number, the greater the distance at which the light from the flash is sufficient for optimal exposure.

How does flash compare guide numbers?

Compare Power Levels of two flashes The simple rule is: Guide Number = distance x fstop Number (for any proper direct flash exposure). Therefore, double GN is double distance or double fstop Number (which is 2 EV stops of exposure). So comparing as f/stops works too.

Should I get the canon 580EX II or 580EX without FEC?

In nearly all cases, would pick the 580EX II exposure over the 580EX without FEC by a slight margin . Most (but not all) of the Canon Speedlite 580EX II Flash’s other changes from the 580EX are good ones The 580EX II recycles approximately 20% faster than the 580EX. What is more noticeable to me is the lack of sound during the recharging phase.

How does the new Canon Speedlite 580EX II flash compare to original?

There are many subtle changes in size/shape/texture in the new Canon Speedlite 580EX II Flash. As can be seen in the comparison pictures throughout this review, the new flash is slightly larger/bulkier than the older flash. The reshaped flash body immediately reminded me of the 580EX’s predecessor, the Canon Speedlite 550EX .

What is the Velcro for on the 580EX II flash?

Note: the adhesive Velcro shown on the original 580EX (above left) is an accessory used to hold certain flash modifiers in place. There are many subtle changes in size/shape/texture in the new Canon Speedlite 580EX II Flash.

How do I use the canon 580EX flash metering?

Those of you familiar with Canon’s recent flashes will correctly recognize Auto and Manual External metering as being new. Tell the 580EX your camera’s ISO and aperture (F/stop) settings and it will calculate its own flash output. The built-in meter measures reflected light and turns off the flash when the proper amount is detected.