No frame rate control when shooting video. No way to set an exact shutter speed when shooting vide No HDR when shooting video. No way select among S21 four cameras when shooting video. Why selfi video? HISTOGRAM IS REVERSEED! What is the default bit rate? No information on what the app is doing when one is shooting video so it's risky to use it even as a secondary video camera when shooting stills! Great interface for a photographer!!! But only if all 4 cameras are supported.