TS-Optics RC 203 Pro Carbon OTA This 203 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1624 mm focal length at f/8. The all-reflective optical layout is intended for imaging and can also be used visually with suitable accessories.
Manufacturer model: TS-Optics RC 203 Pro Carbon OTA · Specifications checked against manufacturer data on 2026-11-04
This 203 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1624 mm focal length at f/8. The all-reflective optical layout is intended for imaging and can also be used visually with suitable accessories.
A separate focuser moves the eyepiece or camera without focusing by shifting the primary mirror. Extension rings are used to accommodate different optical trains. The table labels backfocus from the focuser socket separately from any distance measured from the rear tube surface.
This is the carbon fibre-tube configuration. Its published weight, secondary obstruction and mounting rails remain specific to this version; carbon and metal RC assemblies are not interchangeable specifications.
Carbon 8-inch RC with GP and Losmandy rails; not the 8.25 kg metal-tube version. Backfocus reference surfaces remain explicit.
TS-Optics manufacturer documentation
Carbon 8-inch RC with GP and Losmandy rails; not the 8.25 kg metal-tube version. Backfocus reference surfaces remain explicit.
| Secondary obstruction | 85 mm |
|---|---|
| Connection thread | M90 × 1 |
| Dovetail bars | One GP and one Losmandy-style; each 395 mm |
Data sheet
Specific References
TS-Optics RC 203 Pro Carbon OTA This 203 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1624 mm focal length at f/8. The all-reflective optical layout is intended for imaging and can also be used visually with suitable accessories.
Manufacturer model: TS-Optics RC 203 Pro Carbon OTA · Specifications checked against manufacturer data on 2026-11-04
