A recent post on Apple’s Support Forum describes the impact of high-amplitude vibrations on the camera iPhone. Especially the vibrations generated by motorcycle engines with high-power vibrations.
It is said that high-power vibrations can reduce the performance of the iPhone camera system. Therefore, the company recommends not to mount the iPhone on a motorcycle, as vibration can be transmitted through the handlebars and chassis of the motorcycle.
Launching from The Verge, Sunday (12/09/2021), Apple provides a technical explanation as follows:
If you accidentally move the camera while taking a picture, the resulting image may be blurry. To prevent this, some iPhone models have optical image stabilization (OIS).1 OIS lets you take sharp photos even if you accidentally move the camera.
With OIS, the gyroscope senses that the camera is moving. To reduce image motion, and the resulting blur, the lens moves according to the angle of the gyroscope.
Not only that, some iPhone models have closed-loop autofocus (AF). Closed-loop AF resists the effects of gravity and vibration to maintain sharp focus in photos, videos, and panoramas.
With closed-loop AF, the built-in magnetic sensor measures gravity and vibration effects and positions the lens so that motion compensation can be adjusted accurately.
The closed-loop OIS and AF system in iPhone is designed for durability. However, long-term direct exposure to high-amplitude vibrations in a certain frequency range can degrade the performance of this system and also cause a decrease in image quality for photos and videos. It is recommended that you avoid iPhone from extended high-amplitude vibrations.
Apple says if you plan to attach your iPhone to a motorcycle, it’s recommended to use a vibration dampening mount to reduce the risk to the phone and its camera system.