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Fun with batteries/cameras

Discussion in 'Photography Chat Forum' started by Phill104, Mar 11, 2019.

  1. Phill104

    Phill104 Always on Premium Member

    Edit my images ?:
    Yes (recommended)
    Had a Sony A7IIIR in the office for the last couple of weeks as someone was doing product shots. I was amazed by how many batteries it was eating so decided to take some measurements and compare to my 5D3

    So geek time here, only the obsessed need read on.

    I hooked up the 5D3 to a battery replacement dohicky so I could measure the current it uses. When switch on with the rear screen blank and metering active in one shot mode it draws 95ma. In standby with the rear screen in Q mode 180ma so the screen draws a bit. In live view it whipped up to 380ma and when recording video increased to 420ma.

    So next was to test the Sony. With the camera switched on and rear screen blank the current drain was 310ma. The sensor and EVF are on so that explains a lot. With the rear screen on it went up to 460ma and recording in 1080p it went to 490ma.

    Just shows where all that power is going and why DSLRs use so much left. I didn’t measure the drain during AF as I didn’t have two comparable lenses.
    Last edited: Mar 11, 2019
    darkhorse and rebel06 like this.
  2. MikeB

    MikeB Always on Premium Member

    Edit my images ?:
    Yes (recommended)
    Significant differences. Interesting.

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