Can a DSLR be powered continuously over USB for automated daily shooting?
Asked 4/17/2016
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I’m using a Raspberry Pi to trigger one photo per day and hoped the camera’s USB connection would keep the DSLR powered or charged. It doesn’t seem to. Is USB power normally enough for a DSLR, or do I need another way to run the camera continuously for unattended daily shots?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
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Is there really no way automate a DSLR to shoot every 24 hours without having to pick it up, charge/replace its battery, and put in back on the same spot ?
Canon and Nikon cameras can be connected to AC power by means of an adapter that fits in the battery slot. For example, Canon DSLRs that take an LB-E6 battery (like the 5D II, 6D, and 7D) can use an ACK-E6 adapter:
And Nikons that take a EN-EL14 battery (like D3200, D5200, etc.) can use this EP-5A AC Adapter:
I've seen similar arrangements for other brands as well. The best plan is to check the list of accessories available for your camera -- there are sure to be solutions for powering your camera both from AC power and also from a 12V vehicle battery.
Originally by user4262. Source · Licensed CC BY-SA 4.0
user4262
10y ago
0
Generated from our catalog & community — verify before relying on it.
Usually, no: a DSLR typically cannot be powered or charged through its regular USB port. USB commonly provides only 5V, while many DSLRs need a higher voltage and more power than standard USB can supply reliably.
For unattended long-term shooting, the usual solution is a dedicated external power adapter made for your camera. These often use a dummy battery that fits into the battery compartment and connects to an AC adapter. Canon, Nikon, and other brands offer or support these for many models.
If mains power isn’t available, check whether your camera has a compatible vehicle/12V power option or battery grip for longer runtime.
In theory, USB step-up converters exist, but DSLR power demands are often high enough that this is impractical or unreliable for full-time use.
So for a daily automated shot setup, the best approach is to use your camera’s proper AC/dummy-battery power accessory rather than USB charging.
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