| Optec Alnitak Flip-Flat Flat Fielder | Accessory | 53 | 731 |
| Optec DirectSync APO for FocusLynx | Accessory | 1 | 4 |
| Optec Flat-man XL-2 30”x30” | Accessory | 1 | 53 |
| Optec FocusLynx DirectSync SV | Accessory | 30 | 597 |
| Optec FocusLynx Dual-Focus Controller | Accessory | 15 | 73 |
| Optec Gemini Rotating Focuser | Accessory | 21 | 237 |
| Optec Lepus 0.62X Standard | Accessory | 16 | 151 |
| Optec Lepus HD - C11 EdgeHD | Accessory | 2 | 9 |
| Optec Lepus HD - C14 EdgeHD | Accessory | 0 | 0 |
| Optec Lepus HD - C8 EdgeHD | Accessory | 4 | 10 |
| Optec Lepus HD - C9.25 EdgeHD | Accessory | 2 | 11 |
| Optec Lepus-STL 0.62X Special Ed | Accessory | 0 | 0 |
| Optec MAXfield | Accessory | 0 | 0 |
| Optec NGC 214 F7.3 Telecompressor | Accessory | 1 | 88 |
| Optec NGC 316 f/7.5 Corrector | Accessory | 0 | 0 |
| Optec NGM 0.33X | Accessory | 2 | 2 |
| Optec NGUW 0.7XL | Accessory | 0 | 0 |
| Optec NGW 0.5X | Accessory | 1 | 5 |
| Optec Pyxis 2" Gen3 Camera Field Rotator | Accessory | 2 | 7 |
| Optec Pyxis 3" Gen2 Camera Field Rotator | Accessory | 5 | 104 |
| Optec Pyxis LE Camera Field Rotator | Accessory | 5 | 206 |
| Optec QuickSync FT30 Motor for the FeatherTouch 3-inch series | Accessory | 2 | 8 |
| Optec Sagitta Off-Axis Guider | Accessory | 25 | 243 |
| Optec SMFS Focuser | Accessory | 10 | 70 |
| Optec TCF-Leo Low Profile Focuser | Accessory | 24 | 131 |
| Optec TCF-S Focuser | Accessory | 10 | 24 |
| Optec TCF-S3 3-inch Focuser | Accessory | 4 | 13 |
| Optec TCF-Si Focuser | Accessory | 5 | 105 |
| Optec ThirdLynx DirectSync ESX25 | Accessory | 2 | 8 |
| Optec ThirdLynx DirectSync SVX30 | Accessory | 2 | 6 |
| Optec ThirdLynx DirectSync SWX30 | Accessory | 5 | 20 |
| Optec ThirdLynx QuickSync FTX30 | Accessory | 10 | 80 |
| Optec ThirdLynx QuickSync FTX40 | Accessory | 11 | 139 |
| Optec ThirdLynx QuickSync TKX (19965) | Accessory | 8 | 70 |
