MichaelVadon
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I noticed the 5DSR eats up batteries at double the rate of the 5D Mark III which isnt surprising. It does have two processors. The surprising part is when I leave the switch to "On", the sleep function set to 1 minute and the batteries go dead within 24 hours. So even with the camera in sleep it still uses the battery.
So good rule of thumb is to expect the 5DSR to use twice the batteries you would normally use with the 5D Mark III. I also suggest taking out the batteries when not in use to prevent any drainage. Sometimes you will probably make that mistake of leaving the switch to on so its best just to remove the batteries in any event.
The battery life on the 5D Mark III has been great for me and Ive gotten through a number of events without having to change. The 5DSR on the other hand eats batteries.
So good rule of thumb is to expect the 5DSR to use twice the batteries you would normally use with the 5D Mark III. I also suggest taking out the batteries when not in use to prevent any drainage. Sometimes you will probably make that mistake of leaving the switch to on so its best just to remove the batteries in any event.
The battery life on the 5D Mark III has been great for me and Ive gotten through a number of events without having to change. The 5DSR on the other hand eats batteries.