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Powering an Atomos Ninja (sony NP-F battery mount)


Sarah Thompson

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Hi folks,

 

I've been experimenting recently with an Atomos Ninja HD recorder. Seems to work really nicely, I'm happy with the results, and going straight to Prores is really nifty. However, its out-of-the-box power solution is kind of nasty. It has two Sony NP-F style battery mounts on the back and no other power connectors. The standard (small) batteries supplied with it are just giving about an hour of record time each running ProRes HQ, which (duh) isn't remotely enough to be useful. It can accept larger NP-F style batteries, but since I'm trying to move my rig to AB gold mount for everything, I'd rather power it from that. Thing is, I can find gadgetry that will let me hook an AB battery to it, as if I was powering a camcorder, but I'd rather be able to power it from the same battery as the camera (which might be on a steadicam rig or mounted to the rail system with a cheese plate if I'm using sticks). My Google-fu is failing me -- does anyone know of a suitable adapter (i.e., 12V in, fake 7.4V NP-F battery out)?

 

If it was not for the weirdness of needing a fake battery rather than a plug, I'd probably have just built my own little power regulator, but...

 

Thanks,

Sarah

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I just bought a used Sony clamshell monitor that happened to use the same batteries. It came with a power supply/charger with a fake battery. I popped it onto the Ninja, and it powered it just fine, so I therefore have a mains power solution. I'll probably modify the cable and build an 8V regulator which should make it possible to power it from about 10V to 25V. I don't know if the Sony parts are still available, but I can dig out the part numbers if anyone wants them.

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