| Part # | 1.25" EP-M | 1.25" EP-F | 2" EP-M | 2" EP-F | T-M | T-F | SCT-M | SCT-F | Description |
| TADP | X | - | - | - | X | - | - | - | For direct photography, threaded for 1.25" filters |
| TAPP | X | - | - | - | X | - | - | - | Holds 1.25 eyepieces for projection photography |
| TA3P | - | - | X | - | X | - | - | - | 2" Low Profile 2" T-adapter for Direct Photography |
| TA2P | - | - | X | - | X | - | - | - | 2" T-adapter for direct photography |
| TASC | - | X | - | - | X | - | - | X | SCT collar ring type, also holds 1.25" eyepiece |
| TASS | - | - | - | - | X | - | - | X | SCT collar ring type, 1.2" overall length |
| TASL | - | - | - | - | X | - | - | X | SCT collar ring type, 2.2" overall length |
| TALP | - | - | - | - | X | - | - | X | Solid adapter, no collar ring, Very Low Profile |
| TEMM | - | - | - | - | 2 | - | - | - | Has Male T-Threads on both sides |
| TTET | - | - | - | - | X | X | - | - | T-Thread Extension Tube / Spacer Ring, 10mm |
| TAMF | - | X | - | - | X | X | - | - | T-Thread Extension Tube with 1.25" Bore and Thumbscrews |
| TTCM | - | - | - | - | - | X | - | X | C-mount male threads for video cameras |
| TTxx | - | - | - | - | - | X | - | - | T Rings adapt T-threads to SLR cameras |
| TA2E | - | X | - | - | - | X | - | - | 1.25" Eyepiece to Female T-Thread Adapter |
| TAFF | - | - | - | - | - | 2 | X | - | Has Female T-Threads on both sides and Male SCT Schmidt Threads |
| SCMM | X | - | - | - | - | - | 2 | - | 2" SCT Schmidt Thread Male to Male Adapter |
| TAFP | X | - | - | - | - | - | X | - | EP barrel unscrews to expose female T threads |
| TAEP | - | - | X | - | - | - | X | - | Threaded for 2" filters, no more recess on barrel! |
| SCET | - | - | - | - | - | - | X | X | SCT Schmidt Thread Extension Tube / Spacer Ring, 1/2 inch |
| TSCP | - | - | - | - | - | - | - | X | Rear Cell Cap for SCT's with Schmidt Threads |
| ADT3 | - | - | - | X | - | - | - | X | Compression band, Two retaining screws |
| FAS2 | - | - | - | X | - | - | - | - | Focuser Adapter for Synta Refractors |
| PFR2 | - | - | - | X | - | - | - | - | 2" Parfocalizing Rings |
| EEX2 | - | - | X | X | - | - | - | - | 2" Eyepiece Barrel Extension, 2" long |
| EEX1 | X | X | - | - | - | - | - | - | 1.25" Eyepiece Barrel Extension, 2.2" long |
| ADP5 | - | X | X | - | - | - | - | - | 1.25" to 2" Low Profile Twist-Lock Adapter with 2" Filter Threads |
| ADP3 | - | X | X | - | - | - | - | - | Low profile 1.25" to 2" eyepiece adapter, threaded for 2" filters |
| FAA2 | - | X | X | - | - | - | - | - | Compression Ring 1.25" to 2" eyepiece adapter, threaded for 2" filters |
| PFR1 | - | X | - | - | - | - | - | - | 1.25" Parfocalizing Rings |
| SCTS | - | - | - | X | - | - | - | X | 2" SCT Thread Spacer Washers |
| SCTW | - | - | - | - | - | - | X | - | SCT Thread Internal Spacer Washer |