We saw a prototype last year of what Genus are now calling the END – it’s a combined EOS-mount to E-mount adapter and electronic ND filter that uses liquid crystals to change the effective ND from between three to ‘between eight and ten’ stops.

The unit draws power from the camera, a Sony A7s in the video above, and currently incorporates a wireless control system that can be used to control iris, focus and ND strength. Genus are going to gather feedback from early users, but intend to change the form factor to make mounting the unit more streamlined and manual control more straightforward.

They’re aiming to have the next iteration ready to show in April at NAB and to ship shortly afterwards, aiming for a price of under $1,000 US.