With a smartphone, you can operate a camera upside down or rotated, which would require a different scan direction. Most cameras scan the sensor top-to-bottom. Scan Direction: Specifies the direction that the rolling shutter scan takes place. Adjust the Rolling Shutter Rate until distorted lines become vertical. DSLRs seem are in the 50-70% range, and iPhone is close to 100%. Rolling Shutter Rate: Specifies the percentage of the frame rate which is the scan time. The Rolling Shutter Repair effect in Premiere Pro can be used to remove these distortion artifacts.Īfter applying the effect, the following properties are available: These distortions can occur when the camera or subject is moving. Due to the time lag between scans, not all parts of the image are recorded at the same time, causing rolling shutter distortions. A common problem for DSLR and other CMOS sensor-based cameras is that they typically have a lag time between scanning lines of video.
