LucAdapters has launched a crowd funding campaign to develop a focal reducer for the newly announced Super 35mm 6K cinema camera from Blackmagic Design. The reducer will allow users to mount full frame lenses on the camera with only a slight crop, thus emulating the look of a camera with a full frame sensor.

The company has history with this kind of adapter and currently makes a reducer for the Ursa Mini called Magicbooster Pro, and has in the past made a full-frame adapter for the Samsung NX1. This new model will be called Magicbooster Pocket 6K and will combine the benefits of a 1 stop increase in effective aperture as well as decreasing the crop factor of the 6K area of the camera’s Super 35mm sensor from 1.5x to 1.1x. This allows full frame lenses to practically maintain their intended angle of view when recording 6K footage, with a 50mm lens acting like a 55mm with the reducer instead of like a 75mm without it.

Here's a video made with the current Magicbooster, shot on Blackmagic Ursa mini 4.6K by PILOTMOVIES.

The Magicbooster Pocket 6K will be fully compatible with all of Canon’s EF lenses according to LucAdapters, but not EF-S models. The Magicbooster fits inside the camera’s throat leaving the mount untouched, and replaces some internal parts of the camera itself in doing so. The unit comprises a small barrel with lens elements at the end. It screws into the camera with the magnifying lens sitting directly in front of the camera’s sensor and behind the IR filter.

Buyers will receive a replacement UV-IR cut filter that the company claims is better than that which is shipped with the camera. Such a degree of installation is required that it isn’t the sort of adapter that can be attached and unattached in a couple of seconds, but it also means there's no need to add and remove the adapter every time you have to change a lens.

LucAdapter says the Magicbooster Pocket 6K will ship in November this year, and will cost from €499 (approx. $550). For more information see the LucAdapters Magicbooster Pocket 6K Kickstarter campaign.