Can IBIS or optical stabilization track a moving subject during exposure?
Asked 9/28/2019
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Could in-body image stabilization (IBIS) or optical stabilization (OSS/OIS) be used to reduce motion blur from a slowly moving subject—such as an aircraft or vehicle in low light—when very fast shutter speeds are not practical? In theory, cameras already have subject-tracking data for autofocus, so could that information be used to shift the sensor or lens during the exposure to follow the subject across part of the frame? Aside from specialized astrotracking systems such as Pentax’s GPS-based implementation, is any manufacturer known to do this?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
6y ago
2 Answers
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Probably not in the way that you are asking.
But there are some camera bodies with IBIS that use the ability of the sensor to move to track the sky in moderately long exposures of the night sky. Rather than starting in the center of the sensor's range of travel, they start on one edge and move until they reach the limits of movement on the other edge. This helps counteract the earth's rotation beneath the night sky. The cameras still needs to be supported on a solid mount, though, because the motion of the sensor is computed by the camera based on lens focal length and other parameters and does not compensate for irregular camera movement, only for the calculated movement of the earth beneath the sky during exposure.
Originally by user15871. Source · Licensed CC BY-SA 4.0
user15871
6y ago
0
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Generally, no—not in the way you describe.
Some cameras with IBIS can move the sensor during long night-sky exposures to compensate for the earth’s rotation, but that is a specialized astrotracking feature rather than subject tracking. In those modes, the camera starts the sensor near one edge of its travel and moves it in a calculated path during the exposure.
That works because the motion is predictable: it is based on focal length and known sky movement. It also requires the camera to be on a solid support, since it is not correcting arbitrary camera movement at the same time.
For ordinary moving subjects such as cars or aircraft, the motion is not as predictable and current stabilization systems are not generally used to follow the subject during the exposure. Autofocus subject-tracking data exists, but the provided answers do not indicate any mainstream implementation that uses IBIS/OSS specifically to track and stabilize a moving subject in this way.
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