I've gotten to play with the Sony a6400 for the last couple of days and although it's not exactly what I'm looking for, it still may be the best camera for sale currently under $1,000.
The a6400 is an update of the a6300. It has the same sensor, same image quality, and the same small battery, with only slightly better performance, but thanks to a few significant changes, it still feels like a completely new camera. For me, I was excited about two main features: unlimited record time and world-class continuous autofocus tracking. These two features did not disappoint. Finally, I can record 4K footage without the camera shutting off at 30 minutes or earlier from overheating and the autofocus is so good it's almost magical. ISO performance was about 2.5 stops better than our GH5s which is also a huge upgrade. The new screen is capable of moving into "selfie mode" so that you can see yourself while you film.
Sadly there were a few issues with the camera that made me decide to wait for Sony's next big camera. First, the camera doesn't have a stabilized sensor. If you've got a stabilized lens or your shooting on a tripod this won't matter but we are so accustomed to shooting handheld with the GH5, it was a bit of a bummer. Rolling shutter was also pretty prevalent with the a6400 making quick movements or stabilization in post impossible. I found the location of the SD card slot under the camera really annoying. It forces you to take the camera off of a tripod every time you need to grab your SD card. And of course, the poor battery life can also be a major inconvenience. None of these issues were deal breakers for me though until I learned that the a6400 doesn't have a headphone jack. Monitoring audio may be one of the most important things we need to do when shooting video. I assumed that monitoring audio with this camera was impossible but a few readers have pointed out that you can monitor audio with a USB type C dongle. This is annoying but certainly better than nothing.
Even though this camera isn't exactly what I'm looking for as a videographer, I must admit that this camera might be perfect for the average shooter. For just $900 the a6400 is packed with incredible features that the most expensive cameras on the planet didn't have just a couple of years ago. If you're looking for a small camera that can take fantastic looking pictures and videos with world-class autofocus features, or you're looking for a "B" camera for video, the a6400 might just be the best bargain in cameras today.