Yongnuo YN622 + Calumet Genesis 400 = 1/8000 second with no dark bands!

Since I have two 430EXIIs, I bought a set of Yongnuo YN622s to achieve high speed sync with my speedlites. Fully not expecting it to work, I tried the triggers with my Calumet Genesis 400 studio lights, and sure enough I got it to sync at 1/8000 without having a dark band at the bottom of the frame. I tested it with a 5D MkIII and a 5D MkII, both with the same successful results. I then tried the same experiment on both cameras using my Yongnuo RF-602 triggers, and I got a lot of dark space in the frame.

I took this photo in total darkness (I love that these triggers have AF assist beams!) at 1/8000, F/2.8, ISO 400. For reference, the fan was on at high speed. Needless to say, I'm a happy camper. I suppose my next purchase is going to be either a Vagabond Mini or Innovotronix Explorer.

The Calumet Genesis is a good monolight for Hyper Sync applications because it has a relatively long flash duration. And If you are using it below full power its even better.

I had a 300B for a while and it worked great with ControlTL for Hyper Sync. My recollection is that the Genesis is a single voltage light so the VML should work fine with it.

I think I sold mine before I got the VMLs.

You do realize, that your fan shot would actually be sharper, less motion blur, if you were using speedlites at something below 1/4 power.
when using Hyper Sync you are turning the monolight into a constant light source and the shutter speed becomes the determining factor in stopping motion. And since 1/8000 of a second is a thin slit sliding across the sensor at closer to 1/300 of a second, there will be motion blur. While a speedlite firing at 1/4 power may be flashing at less than 1/4000 of a second.

Here is a table I found that someone measured in a lab with appropriate equipment. I wouldn't consider it gospel but it does illustrate the action stopping power a speedlite holds.

1/1 power = 1/1000 second
1/2 power = 1/2000
1/4 power = 1/4000
1/8 power = 1/9000
1/16 power = 1/15000
1/32 power = 1/21000
1/64 power = 1/30000
1/128 power = 1/35000

Curious if anyone has tried using YN-622C triggers and monolights for sports in a Gym? If you can stop a spinning fan blade, maybe you could stop a volleyball, or basket ball with two lights set at 1/4 to 1/2 power....???

110yd

110yd wrote in post #15169574
Curious if anyone has tried using YN-622C triggers and monolights for sports in a Gym? If you can stop a spinning fan blade, maybe you could stop a volleyball, or basket ball with two lights set at 1/4 to 1/2 power....???

110yd

Since most shots in Gyms will be shot at below sync speed, Hyper Sync/ Super Sync aren't required. You can see how strobes, usually monolights work by looking at just about any picture of an NBA game.

The high shutter speed in the fan example would be detrimental to a good game shot in a gym because it would eliminate the ambiance of the arena lighting.