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On 7D flash synch speed

Started Nov 7, 2004 | Discussions thread
Patrick H Lockwood Contributing Member • Posts: 612
Re: sync speed

Desmond Lim wrote:

Hi Geir,

No, if spec given sync speed of 1/160, any shutter speed greater
than that will result in incomplete exposure unless HSS is enabled.

Not necessarily. Sometimes X sync is a conservative number.

Although my E1 has a reported X sync of 1/180, and the dedicated flash unit, when communicating to the camera, will not allow faster than this, unless HSS, I can sync at 1/320 with third party flashes. You just have to try it with a non TTL or non communicating flash to see what the real X xync potential is.

Patrick

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