How many watt seconds is a speedlight?
How many watt seconds is a speedlight?
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.
How many watts is a canon 430EX II?
This is just a guess based on carrying a secondary flash (lumadyne) at weddings and manually switching between 50-100-200 watt seconds. I have the 430ex its a nice flash….Latest buying guides.
| 20 | Colin Creevey |
|---|---|
| 3 | Don89 |
What is the guide number for Canon 580EX II?
190
One of the primary differences between the 430EX and the 580EX II is the amount of light each can provide. 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).
What is a good wattage for photography lighting?
You need around 200-300 watts for studio lighting for a small commercial photographic shoot. For larger studios and more subjects, strobes around 400-500 watts will do the job.
Can Canon 430EX II be used as master?
The 430EX II is capable of being an “optical” slave (that’s builtin… no additional accessories are required provided it is being used with a Canon “master”). It cannot be a “master”. This means it will function as an off-camera flash provided it has “line of sight” to notice the on-camera “master” trigger the flash.
What is a good guide number for a flash?
Flash Guide Number Formula
| Guide Number | F-Stop | Flash to Subject Distance |
|---|---|---|
| 40 | f/4 | 10 feet / 3 meters |
| 80 | f/4 | 20 feet / 6 meters |
| 120 | f/4 | 30 feet / 9.1 meters |
| 160 | f/4 | 40 feet / 12.2 meters |
How is flash guide number calculated?
For any given “correct flash exposure” situation, guide number is simply numerically equal to the aperture number (like the number 8 in f/8) multiplied by the subject distance (like 10 feet). Then for example, the guide number is f/8 x 10 feet = GN 80 (feet units).
What kind of camera is the canon 580EX II?
Speedlite 580EX II. Further development of Canon’s flagship Speedlite has led to the production of the 580 EX II. This is the premier Speedlite for all photographers, including professionals. Newly designed to match with the EOS-1D Mark III in terms of improved dust- and water-resistance, body strength, and the ability to control flash functions…
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.
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.
What is the difference between the 580EX II and the 600ex?
This 580EX II recycles in just 4.1 seconds from a full-power dump, and does it silently. It usually recycles instantly. This 580EX II has a superior dedicated backlit LCD, making it easier to read than the dot-matrix displays of the 600EX.
