I just got the new Sony RX10 Mark II in yesterday and obviously the amazing thing about this camera is it's High Frame Rate feature. Here's a quick capture testing some of these HFR settings. I still have to learn how to use it, because once you go into HFR Mode, the camera goes into Stand By and will not let you re-focus or change anything. You have to setup your shot, then go into Stand By mode, and then finally record when you're ready. Depending on the HFR mode, you can only record for a quick second or two.
Of course at 60fps or 120fps 1080p, you can shoot all day. The HFR mode is for 240fps, 480fps, and 960fps. Also you have to play with different shutter speeds at different frame rates to get sharper images with less motion blur. So forgive the footage if it's out of focus, or has too much motion blur. The different frame rates will also cause different crop views. You'll notice the 960fps setting is more 'cropped' than the the other frame rates.
The HFR mode requires a special SDXC Card to record, and after going through a few different types in my stash, the Sandisk Extreme Plus UHS-1/U3 was one that worked very well (found here). Even my high end Sandisk cards 95MB/s used for RAW on the BMPCC didn't work on the RX10MKII. I kept getting an error message because it wasn't U3 compatible
Be careful, don't get the wrong one. The label on my SDXC Card specifically says 80MB/s and U3. It's odd because I can't find the same card on B&H, but definitely the Sandisk Extreme Plus U3 on Amazon is exactly like mine.
I'll be doing a little more in depth about the camera, but if you have any questions about this camera, leave your comments. For those of you on the fence, I think you'll definitely be impressed by all the many features and overall quality of the camera. In stock and available at B&H (here).
Sony RX10 Mark 2 28-200mm F/2.8 Zoom 4K Video HFR Slow Motion