One key selling factor for this lens is naturally the Image Stabilizer (IS). Camera motion is detected by 2 gyro sensors which measure the angle and speed of the shake. This information is used to shift a lens group off the optical axis (basically a forced decentering) to counteract this motion.
The result is a significant improvement of handholdibility under extreme conditions. Canon improved the efficiency of the mechanism to an equivalent of 3 f-stops (up from 2 f-stops).
The IS now offers 2 different modes (instead of just one):
- mode (1) for static scenes where the IS corrects shake both vertically as well as horizontally
- mode (2) for action photography (object tracking) where only vertical shake is corrected
Was £298.99 now £149.99