Originally posted by tabl10s There's a delay between the time you press the shutter button and when the flash fires. The delay is actually multiple small flashes that does whatever is does before the flash fires a full power or any other setting you've chosen. It happened to me yesterday with the on-board flash and today with an external.
Since I don't use flash for sports, no problem. it would only bother me if I wanted to do something artistic as having the subject jump in the air.
From what I've read the issue is really a delay between shutter and preflash. So instead of:
shutter button -> preflash blink blink (1/4sec?) -> flash
you get
shutter button -> 1/2 sec delay -> preflash blink blank (1/4sec?) -> flash
The other alternative is to stop using the pTTL crutch and learn how to use your flash in manual or A modes...you might even find you like studio lighting like I do