TS-Optics CF-APO 70 FPL55 Triplet OTA A compact apochromatic refractor for visual observing and imaging. Its adjustable, temperature-compensated lens cell houses the original FPL55 optical design.
Manufacturer model: TSCFAPO70 — original FPL55 · Specifications checked against manufacturer data on 2026-11-04
A compact apochromatic refractor for visual observing and imaging. Its adjustable, temperature-compensated lens cell houses the original FPL55 optical design.
Camera and visual use
The geared focuser accepts threaded camera adaptations. Optional TSFLAT72 and TSCFRED70 correctors are documented with 55 mm sensor spacing from M48; check the selected configuration before assembly.
Original model documentation
Specifications below describe TSCFAPO70. The manufacturer link now shows its Sky Rover successor; replacement specifications have been excluded.
Original FPL55 model verified from the search-indexed manufacturer document retrieved 4 November 2026. The live URL now serves SR70GPS/FCD100: its revised hardware and mass are excluded. Original source prose incorrectly mentions M92; the technical table and corrector documentation specify M54 × 0.75. Correctors are optional; use the selected corrector's spacing.
Additional specifications
Mass
2.6 kg (published weight)
Focuser load
Up to 6 kg
Native backfocus
Approximately 140 mm from M54
Case size
410 × 260 × 190 mm
Listed contents
OTA, rings, handle, Vixen-style rail, case
Optical test
Individual certificate and serial number
70672
Fiche technique
Diamètre
70 mm
Filetage caméra
M54 × 0.75 female
Pare-buée
Retractable; screw lock
Diamètre du pare-buée
88.5 mm
Focale
420 mm
Rapport F/D
f/6
Porte-oculaire
2-inch rack-and-pinion; fine adjustment; 360° rotation
Modèle
TSCFAPO70
Objectif
Air-spaced FPL55 triplet; multicoated
Tube
CNC metal; internal baffles
Diamètre du tube
76 mm
Longueur du tube
300 mm
Interfaces visuelles
2-inch and 1.25-inch
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TS-Optics CF-APO 70 FPL55 Triplet OTA A compact apochromatic refractor for visual observing and imaging. Its adjustable, temperature-compensated lens cell houses the original FPL55 optical design.
Manufacturer model: TSCFAPO70 — original FPL55 · Specifications checked against manufacturer data on 2026-11-04
