Baader Planetarium FR-4 Adjusting Ring 31.8 mm (T-2 Component 30)

Baader Planetarium T-2 Lock Ring 2 mm Optical Length (T-2 Component 35)

Baader Planetarium Double T-Filter Holder with 31.8 mm Filter Thread (T-2 Component 31)

Baader Planetarium Variable T-2 Extension 12-16 mm with Lock Ring (T-2 Component 33)

Baader Planetarium 10 mm T-2 Conversion Ring - Black