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.
Focusing and spacing
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.
Tube and mounting
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.
Manufacturer details
The manufacturer specifies a 154 mm aperture and 1370 mm focal length for this nominal 6-inch RC.
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.
Additional specifications
Obstruction by secondary
77 mm
Connecting thread
M90x1
Dovetail bar
1x GP style
20900
Scheda tecnica
Apertura
6" / 154 mm
Back focus
159 mm from 2" connection of the focuser
Focale
1370 mm
Rapporto focale
f/9
Focheggiatore
2" dual speed Crayford focuser
Attrezzatura indicata dal produttore
6" f/9 RC astrograph 2" Crayford focuser with 1.25" adaptor Vixen style dovetail bar M90 Extension rings 1x 50 mm and 2x 25 mm Dust cover
Codice produttore
TSRC6M
Modello
TS-Optics 154/1370 mm f/9 Ritchey–Chrétien
Schema ottico
True RC with a hyperbolic primary and secondary mirror.
Riflettività
94% reflectivity non-tarnishing mirror coatings
Risoluzione
0.76"
Diametro del tubo
191 mm
Lunghezza del tubo
500 mm with focuser
Peso del tubo
5.4 kg
Riferimenti Specifici
MPN
TSRC6M
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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
