Do you have a reference that indicates the G1X does not preflash? To my knowledge that would be a unique feature for digital cameras.
Well I can tell you from experience that it doesn’t. Actually, when I bought the SB-105 I read that it won’t work with preflash cameras since it dumps the flash during the preflash and is then unable to flash during the actual exposure since it’s still recycling. It works just fine with my G1X. I also remember reading that there are quite a few cameras that won’t preflash.
10 minutes ago, robotr0n said:
Well I can tell you from experience that it doesn’t. Actually, when I bought the SB-105 I read that it won’t work with preflash cameras since it dumps the flash during the preflash and is then unable to flash during the actual exposure since it’s still recycling. It works just fine with my G1X. I also remember reading that there are quite a few cameras that won’t preflash.
Which manual power level of the sb-105 have you seen this behavior?
I have not seen this behavior since my camera doesn’t preflash...
Just read about it.
Just because it works with the SB-105 does not mean it is not pre flashing, I would fully expect a 1/4 power manual flash to work, emitting a 1/4 power flash on pre and main flash. You mention in your OP you are using slave mode, which would mean the flash would mimic the duration of the slave flash then mimic the main flash immediately afterwards, it would not do it perfectly perhaps as it is not specifically designed to work with TTL, but I would expect it would fire twice in that circumstance. Looking at the manual p.97 describes FE lock which splits the Pre-flash and main flash into two operations - this is standard Canon E-TTL which uses a pre flash so I can assure you the camera uses pre-flash unless you are in manual flash.
I would also suggest you look into INON flashes, I use the older Z-240 and they work well and have been reliable.
