TS-Optics 154/1370 mm f/9 Ritchey–Chrétien This 154 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1370 mm focal length at f/9. The all-reflective optical layout is intended for imaging and can also be used visually with suitable accessories.
Manufacturer model: TS-Optics 154/1370 mm f/9 Ritchey–Chrétien · Specifications checked against manufacturer data on 2026-11-04
This 154 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1370 mm focal length at f/9. 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 metal-tube configuration. Its published weight, secondary obstruction and mounting rails remain specific to this version; carbon and metal RC assemblies are not interchangeable specifications.
The manufacturer specifies a 154 mm aperture and 1370 mm focal length for this nominal 6-inch RC.
TS-Optics manufacturer documentation
Manufacturer specifies 154 mm aperture for this nominal 6-inch RC; store title says 152 mm. Manufacturer 154/1370 f/9 data used; title and SKU unchanged.
| Obstruction by secondary | 77 mm |
|---|---|
| Connecting thread | M90x1 |
| Dovetail bar | 1x GP style |
Data sheet
Specific References
TS-Optics 154/1370 mm f/9 Ritchey–Chrétien This 154 mm Ritchey–Chrétien uses hyperbolic primary and secondary mirrors with 1370 mm focal length at f/9. The all-reflective optical layout is intended for imaging and can also be used visually with suitable accessories.
Manufacturer model: TS-Optics 154/1370 mm f/9 Ritchey–Chrétien · Specifications checked against manufacturer data on 2026-11-04
