Features:
Hand figured with traditional low polishing technology
APO tirplet objectives design
Fully multi coating and blackened lens edges   
Aluminum alloy tubes or carbon fibre tubes are both available                    
Collimation screws for each lens,lens cell is adjustable
Sliding dew shield
Mounting rings and dovetail plate,or L bracket
Dual speeds 2" crayford focuser
Aluminum case is optional