Note - it does not exist yet! And NX1 adapter same guys wanted to make never materialized in final form.

Have you always dreamed of owning a Full Frame camera that shoots 50 frames per second in RAW format?
Now is the time to realize your dream!
With the special Magicbooster Premium Glass (same of Ursa Mini 4K) you can get a full frame look!
Your new Blackmagic Pocket Cinema Camera have APS-C sensor and 1.5 crop factor, with Magicbooster Pocket 6K you can get:

1. 1.1 crop factor,
2. 1 stop increase,
3. Full compatibility with all Canon EF lenses

The Magicbooster is not an adapter ring that attaches to the camera body, but is a group of lenses that fits inside the camera, becoming totally invisible to the naked eye, keeping all the original camera controls. In this way there are no delays or compatibility problems.

https://www.kickstarter.com/projects/lucadapters/pre-order-magicbooster-pocket-6k