- Starlight Instruments Adapter 2" for Orion/Celestron/Skywatcher/Vixen/Synta TelescopesSI-A20-292 $150.00Starlight Instruments Adapter 2"for Takahashi CN212 and Mewlon 180/210/250 Non CRS TelescopesSI-A20-261 $130.00Starlight Instruments Adapter 2.5" for William Optics Megrez 80/90mm and 6/8" RCSI-A25-2003-14 $250.00PlaneWave Adapter, 3.5" Hedrick Focuser to SecureFit Low Profile Spacer, Part 1 of 2PW-600327 $95.00PlaneWave Adapter, 3.5" Hedrick Focuser to SecureFit Low Profile Spacer, Part 2 of 2PW-600328 $95.00Starlight Instruments End Cap 2.5" with 2" Compression Ring Opening and M47x.75 ThreadSI-EC25-2005-5 $200.00Starlight Instruments End Cap 3" for SBIG and FLI 5 Series/CCD Camera & Filter WheelsSI-EC30-1905-12 $150.00Starlight Instruments End Cap 3" for Takahashi M72x1 Male Threaded AccessoriesSI-EC30-1905-72 $150.00Starlight Instruments End Cap 3" for William Optics Male Threaded AccessoriesSI-EC30-1905-92 $150.00Starlight Instruments End Cap 3.5" for CFW2-7 Series/CCD Camera & Filter WheelsSI-EC35-505-13 $190.00