OIS (Optical Image Stabilization) counteracts shake mechanically using moving lenses or sensors, while EIS does this purely through software by shifting and cropping the image. OIS is more precise for small, fast movements, while EIS is better suited for larger movements like walking.
Camera
EIS (Electronic Image Stabilization): Definition & explanation
In a nutshell
EIS reduces camera shake through software by shifting and cropping the image frame. Unlike OIS, it uses no moving lens parts, relying instead on algorithms and gyroscope data.
How does EIS (Electronic Image Stabilization) work?
Electronic Image Stabilization (EIS) analyzes motion data from the gyroscope and accelerometer to counteract shake in photos and especially videos. The software shifts and crops the frame in real time, smoothing out abrupt movements. Since no physical component moves, EIS is cheaper to implement than OIS (Optical Image Stabilization), but it reduces the effective field of view because edges are sacrificed for correction. Modern smartphones often combine EIS with OIS: OIS handles small, fast hand tremors optically, while EIS compensates for larger movements like walking or panning. The benefit of EIS is especially visible in video recording, such as vlogging or action shots. A downside is that EIS struggles in low light, since longer exposure times can overwhelm the software's processing capacity. Overly aggressive stabilization can also cause an unnatural 'jello effect,' where straight lines appear slightly wavy. High-end devices therefore use hybrid approaches combining EIS with sensor-shift OIS and AI-driven algorithms to preserve both sharpness and field of view.
Advantages of EIS (Electronic Image Stabilization)
- No moving parts, cheaper than OIS
- Great for video and walking shots
- Can be combined with OIS for better results
- Improvable via software updates
Disadvantages of EIS (Electronic Image Stabilization)
- Smaller effective field of view due to cropping
- Weaker performance in low light
- Can cause a jello effect during fast motion
- Does not fully replace optical stabilization
Frequently asked questions
EIS needs extra image margin as a buffer to compensate for movement by slightly shifting the frame. This means less of the sensor is effectively used, resulting in a smaller field of view compared to the native sensor size.
EIS alone can deliver solid results in good lighting but struggles in low light or with fast movements. For optimal stability, premium smartphones usually combine EIS with OIS to cover both small and large movements.
Guides with EIS (Electronic Image Stabilization)
No linked guides for this term yet.