Adapting kit for LUNT LS50FHa module.
M42x0.75 threaded for direct threading to standard M42 astronomy imaging and visual equipment such as the Baader TZ3 and TZ4 telecentric amplifiers.
M90x1 threaded for direct threading to either side of the Lunt LS50FHA etalon.
This adapter allows the mounting and use of the air spaced etalon behind the focuser of a refractor without a jacquinot spot.
The other adapter is M48x0.75 threaded to allow direct threading of standard 2" astronomy imaging and visual equipment.