You can read for example here:
That there will be a survey to add the DSI cam with mechanical shutter to the MARK II order.
Where can I get this survey?
The internal camera will have 1080p video with DSI interface, and a mechanical shutter to physically block the lens.
We didn’t forget the details: Kickstarter doesn’t allow add-on rewards, so if you were a Dev Kit, Early Bird, or 3pack backer, rest assured we’re working on the option to get you a camera. Most likely it will be a survey sent post campaign to let you add it to your cart.