docusync wrote:
My apologies - I haven't been visiting this thread for a while!
You probably figured it out already - you need to switch the Exposure/Color -> Flash -> Sync Terminal Settings to "Always" if you're using the ISO pin mode. The ISO pin disables all fancy MI communications and the camera "thinks" it got nothing to trigger if you leave it in "Auto".
Excerpt from the manual: "Auto":
A flash signal is output from the (flash sync) terminal only when the flash is connected to the Multi Interface [MI] Shoe and ready to fire.
"Always:
Always outputs a flash signal when shooting.
MI communication is slow, and you'd get around 10fps at best. The MI mode won't work for any kind of action shots because it increases shutter lag quite significantly even if TTL is disabled. The dumb (ISO pin) mode doesn't introduce any noticeable delays and you'd be surprised how many pops you can squeeze from your flash if you stay around 1/64 - 1/128. Don't forget to adjust the sync delay to catch the peak of light emission if you're exposing at 1/500s or faster....Show more →
With the latest updates (camera + flash), native Sony flashes can do 30fps via MI mode. For the legacy mode, it seems that though you can shoot at high-speed mode, you will still be capped at 30fps regardless of the strobe/flash brands.
hiepphotog wrote:
With the latest updates (camera + flash), native Sony flashes can do 30fps via MI mode. For the legacy mode, it seems that though you can shoot at high-speed mode, you will still be capped at 30fps regardless of the strobe/flash brands.
That was an interesting read until it went into completely unrelated LED rants
The 3rd post mentioned that native Sony flashes can do 120fps after firmware update. So apparently MI is slow with non-Sony devices. Regarding Godox/3rd party flashes in the "Always" sync mode - well, apparently it's just 30 fps... Good to know because I never bothered to measure it. To me it was just "very fast" lol. 30 fps is basically a movie. With flash.
For some reason I feel that 30 fps is an artificial limit though. Similar to the 15fps AF-C cap on 3rd party lenses.
When I connect my xpro v1 and godox flashes I can only get 1/500 before I have to switch to HSS to get shutter speeds above that. Is there a setting I’m
missing on the trigger or flash to allow it or does the v1 trigger not allow it?
I am having the same issues...have you tried manual flash? it is trial and error to get to the sweet spot but any shutter speed can be used. Sony flashes automatically will synch in the sweet spot.
Ok, so short story is the trigger needs to have a legacy mode, which I think prevents it from using TTL and maybe some other functions but allows syncing the flash at any shutter speed. Since I shoot 99.9% of the time in manual mode it's not an issue.
I got the Godox x3 trigger and the latest firmware came installed, which has a legacy mode feature that can easily be enabled and I just turned it on. Super simple. With that, it's easy to use the the flashes at well above the 1/500 sync speed.
I did a quick couple of shots at high shutter speeds and the only issue is getting the right timing. It does vary significantly for different flash power and shutter speeds. I'll need to create a cheat sheet for when I get in the field and don't have time to experiment. I primarily use the Godox AD600 and 600 Pro along with the AD200 and 300 so I'll need to get to work on making those cheat sheets. If anyone has created those cheat sheets, I'd love to take a look.
GMPhotography wrote:
Is this just a Godox issue as I use Wescott myself
Not sure if it's just a Godox issue. From my limited understanding, you just need a trigger that can go into a legacy mode so that the camera's smart hotshoe doesn't try to limit the shutter speed to 1/500 sync speed. I think newer Westcott triggers have that built in and the newer Godox triggers have the ability to turn legacy on or off. I have never used a Westcott so I have no idea of how they work. My older Godox did not have that feature and an upgrade/update fixed it.
Maybe I’m not understanding the problem…but on my A9III I am only limited to 1/500 shutter speed if the camera flash delay (Have to double check the actual setting;s name) is set to off. When set to on, even if no offset/delay, you can go all the way to 1/80000 shutter speed.
