Category Archives: Know-How

How IBIS works and why the term “5-axis” is misleading

IBIS is short for in-body image stabilization. It is a way of optical shake reduction to help reduce or eliminate motion blur in photos. In contrast to traditional optical stabilization, instead of moving a glass element inside the lens, the camera sensor is shifted. All major manufacturers of mirrorless cameras nowadays offer at least one model with IBIS, e.g. Panasonic GH5, Fuji X-H1, Olympus OM-D or Sony A7 series. But how does it actually work? And what does 5-axis stabilization mean?

Continue reading How IBIS works and why the term “5-axis” is misleading

Sony A7RIII Teardown by Lens Rentals


Lens Rentals has taken the Sony A7r3 apart and analyzed the weather sealing.  The photos provided give some really interesting insights into the highly complex interior of the camera. The conclusion of Lens Rentals turns out positive for the Sony: “Except for the bottom this camera has thorough and extensive weather sealing, as good as any camera I’ve seen.”