As per a new support page posted by Apple, the optical image stabilization and auto-focus functions in an iPhone camera can be impacted by the vibrations caused by high-powered motorcycle engines. This can cause these features to not work as intended.
Many users use mounts and other accessories to attach their iPhones to their motorcycles and record videos. However, the powerful vibrations caused by the engines can be transmitted through the chassis to the iPhone camera, which has various magnetic sensors and gyroscopes, intended to take non-blurry photos and videos. Prolonged exposure to these vibrations can cause the sensors to not function well, which can result in blurry photos and videos.
PSA: don’t attach your iPhone to the handle or chassis of a high-powered motorcycle
As per Apple’s support page:
The OIS and closed-loop AF systems in iPhone are designed for durability. However, as is the case with many consumer electronics that include systems like OIS, long-term direct exposure to high-amplitude vibrations within certain frequency ranges may degrade the performance of these systems and lead to reduced image quality for photos and videos. It is recommended to avoid exposing your iPhone to extended high-amplitude vibrations.
Apple recommends not attaching an iPhone at all to high-powered motorcycles. For low-power engines such as those in electric scooters, the company recommends using a vibration dampening mount which will help reduce any possible damage to the iPhone camera OIS and closed-loop AF features.
It is not recommended to attach your iPhone to motorcycles with high-power or high-volume engines due to the amplitude of the vibration in certain frequency ranges that they generate. Attaching your iPhone to vehicles with small-volume or electric engines, such as mopeds and scooters, may lead to comparatively lower-amplitude vibrations, but if you do so a vibration dampening mount is recommended to lessen the risk of damage to your iPhone and its OIS and AF systems. It is also recommended to avoid regular use for prolonged periods to further lessen the risk of damage.
OIS is available on iPhone 6 Plus and later smartphones, while closed-loop AF is available on iPhone XS and later, and iPhone SE (2nd generation).