PaulM
08-25-2007, 11:45 PM
Hello,
I'm trying to shoot stereoscopic video with a pair of HV20s and I have an idea for how I might sync the cameras' 60hz clocks, so as to avoid having frames mis-synced by, at most, 1/120th of a second when shooting 60i. I figure, if I can turn both cameras on at exactly the same time, then they'll probably be pretty much in sync, for at least a few minutes or so. So how to turn them on at exactly the same time? I've noticed that if I take the battery out of the camera, put the camera's power switch in the "on" position, then plug in its ac adapter, the camera immediately turns on. Although the cameras' batteries are 7.4V, the DC input is labeled 8.4V. I'm figuring that if I can find a y-plug with two of the male jacks that my cameras' DC inputs take, plug them into the battery pack-less cameras, turn the cameras switches to "on" then plug the other end of the y-plug into some kind of external 8.4V battery, then at that moment power will simultaneously be provided to both cameras, starting their clocks at the same time, thus in sync. There are plenty of 8.4V battery packs sold online, but what about the y-plug I'd need?
Any of this sound plausible? Got any advice?
Thanks!
Paul
I'm trying to shoot stereoscopic video with a pair of HV20s and I have an idea for how I might sync the cameras' 60hz clocks, so as to avoid having frames mis-synced by, at most, 1/120th of a second when shooting 60i. I figure, if I can turn both cameras on at exactly the same time, then they'll probably be pretty much in sync, for at least a few minutes or so. So how to turn them on at exactly the same time? I've noticed that if I take the battery out of the camera, put the camera's power switch in the "on" position, then plug in its ac adapter, the camera immediately turns on. Although the cameras' batteries are 7.4V, the DC input is labeled 8.4V. I'm figuring that if I can find a y-plug with two of the male jacks that my cameras' DC inputs take, plug them into the battery pack-less cameras, turn the cameras switches to "on" then plug the other end of the y-plug into some kind of external 8.4V battery, then at that moment power will simultaneously be provided to both cameras, starting their clocks at the same time, thus in sync. There are plenty of 8.4V battery packs sold online, but what about the y-plug I'd need?
Any of this sound plausible? Got any advice?
Thanks!
Paul