2 " / T-2 Nose Piece and Camera Adaptor (same as used by SBIG).
The Baader 2" to T-2 Nosepiece allows you to mount your Digital camera and accessories into 2" focusers to enable you to do prime focus photography.
T2 male thread (M42x0.75) on one side, to attach the adapter to T-2 accessories.
The other end is a 2" nosepiece with both internal T-2 threads, which enable even more uses in a T-2 arrangement, and 48mm filter threads (M48x0.75)
The latest version now incorporates a removable 'stop ring', which means the nosepiece can now be used fully inside your 2" barrels and will minimise optical length.