This is a continuation in a series of posts on power consumption in the Sony a7RII. The more recent incarnation of the series starts here. The fact that the a7RII takes battery current to keep the sensor centered even when IBIS is turned off got me to wondering about two things. Do the optically stabilized… [Read More]

This is a continuation in a series of posts on power consumption in the Sony a7RII. The more recent incarnation of the series starts here. A reader asked me to look into the a7RII battery current with a USB charger attached. Here’s the startup cycle under those conditions with a close-to-fully charged batter attached: The… [Read More]

This is a continuation in a series of posts on power consumption in the Sony a7RII. The more recent incarnation of the series starts here. I reported on my battery current measurement setup here. In the last few days, I’ve refined it somewhat, and I’d like to document what I’m doing here, because my techniques… [Read More]

This is a continuation in a series of posts on power consumption in the Sony a7RII. The more recent incarnation of the series starts here. I reported on the battery draining effects associated with turning on IBIS in the Sony a7RII earlier, and found little effect. In a comment (the point of which eluded me… [Read More]

This is a continuation in a series of posts on power consumption in the Sony a7RII. The more recent incarnation of the series starts here. While I was doing the regression testing associated with the firmware upgrade to 3.3, I decided to take a look at the battery current during senor cleaning, which I’d not… [Read More]