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paulheath
29-01-2021, 6:49am
in a pickle, I'll try to explain best I can.

So I shoot off camera flash whilst out in the field, this is the setup. canon 600ex-rt II flash with a St-e3-rt transmitter on camera, had it this way for years, set to HSS and all was working well..........
now for some reason ( and no setting have been changed ) when I " lockdown " the St-e3-rt to the hotshoe , the camera jumps to 1/250 max speed??? if however I don't lock it down then HSS is achieved??? iv also noticed that if I change flash power on the transmitter it does not change power settings on the flash?? I have to fire the "test" button on the transmitter to change the power on the flash?? iv tried different cameras to see if it was a hotshoe issue and still the same issue...
hope this makes sense and someone may have a solution..... cheers all

EMGonzo
29-01-2021, 4:26pm
Can you fire the flash without locking the ST-E3-RT down?

On page 62 of the manual for the Canon 600ex-rt it states that high-speed sync shooting is not possible when using radio transmission wireless flash.

paulheath
29-01-2021, 6:31pm
Can you fire the flash without locking the ST-E3-RT down?

On page 62 of the manual for the Canon 600ex-rt it states that high-speed sync shooting is not possible when using radio transmission wireless flash.

well they need to delete that page lol..... yes have always for a few years now been able to flash at HSS with the St-e3-rt.. and yes flash can fire without locking down

axle01
30-01-2021, 10:12am
Paul have you done a flash reset and start again.

Had something similar and the reset fixed my problem.

Al

paulheath
31-01-2021, 9:22am
Paul have you done a flash reset and start again.

Had something similar and the reset fixed my problem.

Al


yes tried that....

but iv figured it out, whilst the transmitter was set to HSS the flash wasnt ..... so i hit the lightning bolt, turned off wireless on flash, back to main screen... SYNC to hss... back to lightning bolt and turn flash back to wireless slave.... done......
thanks all for having an input into my query

paulheath
31-01-2021, 12:22pm
yes tried that....

but iv figured it out, whilst the transmitter was set to HSS the flash wasnt ..... so i hit the lightning bolt, turned off wireless on flash, back to main screen... SYNC to hss... back to lightning bolt and turn flash back to wireless slave.... done......
thanks all for having an input into my query


well i thought i had figured it out lol........ nope still when i lock down the transmitter it maxes out at 1/250........ dont lock down but leave on hotshoe...HSS achieved