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Luminous Landscape Forum > Equipment & Techniques > Medium Format / Film / Digital Backs – and Large Sensor Photography > Hasselblad H3DII-39 voltage?
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Author Topic: Hasselblad H3DII-39 voltage?  (Read 351 times)
epines
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« on: January 10, 2013, 03:55:51 PM »
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Does anyone know the voltage of the H3DII-39 back? I just received a Tekkeon external battery (for powering it on my Arca Swiss without being tethered), and I need to set the voltage output on the battery.

thanks
ethan
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Nick-T
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« Reply #1 on: January 10, 2013, 04:05:30 PM »
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I'm afraid I don't know the answer to this one. Firewire voltage seems to vary quite a bit (between 12 and 30V). I would excercise caution before connecting anything.
Nick-T
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epines
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« Reply #2 on: January 10, 2013, 04:15:53 PM »
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Thanks, Nick. From what I can tell, the camera's battery grip provides an output of 7.5V, so I'll start there and work my way up until the back powers on.

Happy to hear from anyone else who knows this info.

ethan

 
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Gel
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« Reply #3 on: January 10, 2013, 05:11:46 PM »
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The battery grips are 9.6v and 7.2v. This would suggest the body takes what it needs. Find out properly though.
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epines
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« Reply #4 on: January 11, 2013, 11:01:05 AM »
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Answer: The voltage the back requires is definitely 7.5V. I started at 6V; not enough juice. Then 6.5V; same. 7.5V: all good. Makes sense. The Hasselblad datasheet for the 7.2V battery grip says it has an output of 7.5V.

Thanks, everyone.

ethan

 
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