Yes! Any of the adapters can be used to shoot video. In fact one of the first tests I shot was this slow motion footage - shot on the cardboard prototype of the Polaroid Land Camera adapter and an iPhone 6 - so your results will likely be better than this!
So, the short answer is yes. But there are some caveats…
- Dust - the focussing screen inside all ObscuraFlex™ adapters is a physical membrane, so dust, scratches (and possibly the slight texture of the screen itself) may show up in the footage. It shouldn’t be too much of an issue in HD, but video shot at 4k and watched on a large screen might start to notice “stuff on the lens” which may be undesirable.
- Exposure - the ObscuraFlex™ system requires a fair amount of light, and even with a wide open lens, it’s probably going to be a “daylight only” kind of solution.
- Moving the Camera - the image will be rotated upside down - which doesn’t seem like a big deal until you try to follow a moving object. Operating the camera can be a bit of a challenge.
- Stabilization - most smartphones have built-in image stabilization that can become quite noticeable when shooting with a visible border around the image. This also applies to dust on the focusing screen. It’ll move around relatively to the objects you are shooting as the phone attempts to keep everything feeling smooth. So you may want to turn off stabilizing completely. And depending on your setup you may have to zoom in a little, and crop carefully.
- Breathing - all stills lenses “breathe” when you rack focus, this is a phenomenon that motion picture and video lenses go to extreme lengths to eliminate with complex mechanical systems that compensate precisely for the zooming effect a lens exhibits as it moves back and forth. Without that, the effect is quite noticeable as you adjust focus.
That said, as a filmmaker myself I am very excited by the video possibilities of the ObscuraFlex™ system.