I made the 1,000,000 th post
- Jul 29, 2006
- Photography Experience
- Photo Editing Experience
- Edit my images ?
- Yes (recommended)
This is just a mini review of a specific function of the YN-622C which allows the trigger to sync with studio strobes at high shutter speeds. If anyone would like to know how I achieved the lighting in the title image above... I will do a little tutorial. I took the triggers to the studio today and in between shoots I though I would set up a little test.
So to make the trigger do supersync all you need to do it attach a sync cable (not supplied) between the studio head and the trigger and select a shutterspeed above 1/250s. So how does it work. Well all the trigger does is fire the strobe just before it opens the shutter. This allows the strobe to reach peak brightness and then allows you to use the strobe as a big torch for the duration of the exposure. If you have fast lights you will loose power in the exposure but slower normally cheaper studio strobes work well. The two drawbacks with this method is that you loose about 3/4 of your studio head power and you cannot meter the exposure as you are just using a part of the flash exposure so getting the lighting right is a bit hit and hope!
So does it work... yes it does but it is no better than HSS with a speedlight except that you have about twice the power of a speedlight in hss mode and that will give you better coverage.
Here are some test images of a little fan with stickers in the centre and on the blades. This little fan spins really fast so it was a good test.
So this is the fan at rest at my normal studio sync speed of 1/160... the fan is switched off.
Again at 1/160 but this time the fan is running! It should be noted that the effective shutterspeed here is more like 1/400s as the flash duration is faster that the 1/160s used here.
This is now in supersync mode at 1/1000
This is now in supersync mode at 1/2000
This is now in supersync mode at 1/4000
This is now in supersync mode at 1/8000 fast enough to freeze the centre but not quite the blades!
This is a speedlite in HSS mode at 1/8000 to show in movement terms this is identical. The studio strobe as about 1 stop more power than the speedlite at 1/8000 the head used was a 400ws head which is normally 5x more powerful than a speedlite. So you can see the losses in power using this method.
This last picture was taken with a speedlight at minimum power. The shutter speed was 1/250 my camera's maximum sync speed but this is how flash is normally used. The 580exII used here has a t.1 of around 1/35000s which gives it a virtual shutter speed of 1/12000s which is just enough to freeze the fan blades
So there you go... these cheap triggers work really well with both speedlites and studio strobes... and supersync is nice to have as an option when you need it.