Whilst the A9 is mainly a stills camera, the video functionality may be limited, but the quality of the 4K footage is excellent, especially when the frame rate is controlled using an external variable ND filter. This short sequence was shot using a basic 50mm lens, hand held. We mastered it to 4K.
We shot the sequence at f2.6, which gave a shallow depth of field, and the subject was nicely isolated from the background. Also, no sign of focus phasing, unlike the same lens on the A7RII. The focus science on this camera is streets ahead in video mode – yet alone the amazing results when taking photographs.
The results are of course limited by the lack of log profiles, but the basic video functions are excellent, especially if the histogram is activated. I found the best results were with a one stop drop in exposure.