Confusion over Sync Speed

ChrisHeathcote

ChrisHeathcote

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Hope you can answer a question which is puzzling me. I use a Canon 5D3 which has a sync speed of 1/200, my understanding is that unless I use HSS then you get a black band covering part of the frame as he shutter moves across. Now normally when I use my strobes (bowens Gemini 500) I shoot in manual at ISO 100, 1/160, f8-f16. Recently I accidentally knocked the shutter to 1/320 and guess what, no shutter. So I thought I'd see how far I could go. I managed to shoot at 1/8000 with no issues. As I didn't think my strobes supported HSS I am a little confused. Can anyone explain this for me. I use YN 622 C triggers attached to the lamp using a pc-sync plug
 
The YN-622C is a tail end sync trigger, you can use literally any shutter speed with it, although there are disadvantages.
This is NOT the same thing as HSS.
 
Garry Edwards said:
The YN-622C is a tail end sync trigger, you can use literally any shutter speed with it, although there are disadvantages.
This is NOT the same thing as HSS.
Click to expand...
Thanks Garry, so it's the trigger that's enabling me to use the faster shutter speeds. Oh and congratulations on the award, well deserved :D
 
Garry Edwards said:
The YN-622C is a tail end sync trigger, you can use literally any shutter speed with it, although there are disadvantages.
This is NOT the same thing as HSS.
Click to expand...

Garry, can you expand on this please, I have a pair of YN-622Cs and would like a better understanding of the pros and cons.
 
Seahorse said:
Garry, can you expand on this please, I have a pair of YN-622Cs and would like a better understanding of the pros and cons.
Click to expand...
From the Jargon Buster page on our website, hope it helps:
High Speed Sync or HSS refers to rapid pulsing of IGBT-controlled flashguns, creating an even brightness of what is effectively a continuous light that is present for the brief period of the shutter cycle. HSS allows literally any shutter speed to be used, but the downside of this is that there is a big loss of effective power.

Tail Hyper-sync: This uses the long flash duration common to most studio-type heads most of the time, and also works with most other flash units when used at full power output. The advantage, when used with a radio trigger designed for the purpose, is that literally any shutter speed can be used. However, there's a big loss of brightness with Tail Hyper-sync, and exposure also varies significantly down the frame.
 
That's for the help everyone, it was puzzling me a bit. Not that I'll use them below 1/200 but it's handy to know I could if needs be (although I'd probably just use an ND gel if the flash was too powerful). I was more confused as I didn't think this was possible
 
Tail-hypersync is least successful in the studio. Plain backgrounds reveal the fading exposure up the frame very clearly, and there's no ambient light that normally conceals it quite well outdoors.
 
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