Das Team von dpreview hatte auf dem CP+-Stand von Sony die Gelegenheit sich den 5-Achs-IBIS der A7II näher anzusehen und von Ingenieuren erklären zu lassen. Das Ergebnis ist etwas sonderbar. Angeblich wird die Verschwenkbewegung des Sensors (pitch und yaw) nur berechnet, der Sensor selbst lässt sich nur 3-achsig bewegen. Evtl. ein Mißverständnis?
"The IBIS mechanism is electromagnetic, and adds considerable size and heft to the sensor module. We got to play around with the unit, moving the sensor up, down, left, right, and rotating it. We found, however, that the sensor did not tilt at all in this assembly, so we asked how the system corrects for pitch and yaw. We were told by the engineers that measurements are continuously recorded and used to algorithmically correct for pitch and yaw.
We're a little confused as to how pitch and yaw corrections might be applied in software without some cropping of the image, so we'll be following up about specifics with Sony. If true, this explains why Sony prefers to hand off pitch and yaw corrections to the lens when an attached lens supports Optical Steady Shot - better to correct optically than algorithmically."
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http://www.dpreview.com/articles/346...nology?slide=2