D Thompson wrote in post #14724492
What was your shutter speed on the good shots versus the bad shots? If it's just a darker bar at the bottom like your posted shot, then in all likelihood it is due to too fast of a shutter speed. If the whole image looks dull/underexposed then it is more than likely the unit wasn't recharged. Take a look, it should show estimated recycle time somewhere and there should be a ready light on the strobe as well.
Thanks for your reply, My shutter speeds were the same, I waited for the re-charge buzzer before taking another shot, I am waiting for the time to test a few more things, plus going to get a new battery for the camera unit. I have tried a few different things, but the last couple of days cant seem to get some one to sit in front of the camera.
Ephur wrote in post #14725542
I think the syncing speed is really the issue with the strobes. Not being fully charged before firing again would caused dimmer light across the entire exposure, but not the dark banding at the bottom. 1/250 is probably higher than the wireless trigger can support, I've got some inexpensive strobes and use Yongnuo 603 triggers. I def run into the same problem when shooting at or near the max shutter sync speed.
I think the sync speed is 1/200th on these strobes, I will keep the sync at that or lower to do a better test, the batteries in the reciever are new but the trigger is what it came with, so will re-new that one as well.
Thanks for your feed back.
gonzogolf wrote in post #14725563
Some triggers arent capable of syncing at the camera's full speed. Others tend not to keep up when the batteries are low. By any chance are you using batteries that shipped with the triggers? Often those are demo batteries and tend to be a problem. As for sync speeds, indoors with flash as your primary light source you wont seen any difference in the image between 1/250 and 1/160 so feel free to slow it down a bit.
Thanks for your feed back, I have decided to change the trigger battery asap, the receiver has new batteries, I think I am going to keep the SS at and below 1/200th to see what happens as to the dark band and brighter images.
Thanks shall keep you all informed as to how it goes.