Pushed out in the UK night was an update to Windows 10 Mobile's Camera application, enabling a 'slow motion' mode (at 120 frames per second) when shooting video. This appears as an option on the Snapdragon 800-powered phones, so the Lumia 930, 1520 and Icon. There's a caveat though, in that it's limited to 720p because capturing and post-processing 120fps video at 1080p would be too much for even the Snapdragon 800. Still, it's an arty facility - and one that matches similar functions in the iOS and Android world from the mid-range upwards.
The Lumia 930 (et al) can cope with capturing 4K video normally, but 720p at 120 frames per second involves just as much data, so the resolution hard limit shouldn't be surprising. In addition, any changes you make to the slow motion 'edit' have to be processed/rendered, and this takes many seconds (around a minute for ten seconds of video) even on a Snapdragon 800. The balance struck here is perfectly acceptable even on the older hardware - and on the new Lumia 950 and 950 XL it will all run even more smoothly.
You can snag the update if you're on the Insiders Programme for Windows 10 Mobile by updating Camera in the Store now. Here are some screens of it in action:
Within the Camera interface, in video mode, there's now a 'turtle' icon in the top toggles - tap this to toggle slow motion - this temporarily overrides any resolution choices (e.g. 4K) already made in Settings on the menu.
Having shot some video (and hopefully only a short snippet of it), popping back to review it in Photos shows slow motion (1/4 speed) across all of your footage. On the left of the screen is the new function 'Edit slow motion'.
If not already installed, you'll be prompted to go and grab the Photos plug-in (this also serves to handle 'Best lighting', i.e. in HDR shots when shooting stills).
And then you're off and running, editing slow motion - essentially you pick a point at which super slow motion (1/16 speed, by my estimation?) hits - and can expand this moment by changing the speed at the top, whereupon the blue marker splits into two - just adjust as needed.
A clever implementation, even if Apple and others got to 'slow motion' first, not least the whole 'quick, slow, quick' montage idea. Microsoft's default is for the whole clip to be at the captured rate, i.e. 1/4 speed, which is sensible. If you then choose to 'Edit' then it's assumed that you want to be much more arty and then you get edit points and reduced frame rate super slow-mo. It's all quite well thought out, I think. But comments welcome. And would you use this much in real life?