ZWO Nikon T-2 Lens Adapter to Attach Nikon Lens to ZWO ASI1600 with EFW -  Mark II

This mark II version has improved locking mechanism to make it easier to remove the lens.

With the help of this adapter you can attach a Nikon AI lens to a ZWO ASI1600 camera when there is a EFW (electronic filter wheel) in between them.