TS-Optics CD-APO Deluxe 155 OTA This 155 mm FPL55 and lanthanum air-spaced triplet has a 1240 mm focal length and f/8 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics CD-APO Deluxe 155 OTA · Specifications checked against manufacturer data on 2026-11-04
This 155 mm FPL55 and lanthanum air-spaced triplet has a 1240 mm focal length and f/8 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
The original Deluxe model uses a 3.7-inch dual-speed RAP focuser with 360° rotation, 100 mm travel and M63/M92 imaging connections.
A removable 100 mm extension changes available backfocus from 140 to 240 mm. The original tube weighs 13 kg. This is the original TSAPO155f8 specification, not the newer Sky Rover replacement.
TS-Optics manufacturer documentation
Original TSAPO155f8 FPL55/lanthanum model recovered from manufacturer display-item documentation. The former regular URL now serves SR155GPS. Display-item condition and package omissions are not assigned to this store product; original case dimensions are a reference, not a claim that the display item supplies a case.
| Lens | Triplet lens, air-spaced |
|---|---|
| Special glasses | FPL55 and lanthanum glass |
| Cell | Adjustable cell - reinforced |
| Connection on the tube for adapting individual focusers | M124x1 female thread |
| Connector extension tube | length 100 mm - removable - this extends the working distance to 240 mm. |
| Thread on connecting piece | M124x1 external (telescope side) - internal (focuser side) |
| Connectors eyepiece side | 1.25", 2", M63x1 female thread, M92x1 female thread |
| Focus travel | 100 mm |
| Telescope length min | 1145 mm |
| Diameter dew shield | 186 mm |
| Dew shield travel | 190 mm |
| Weight of the optical tube | 13 kg |
| Outer dimensions transport case | 133 x 43 x 43 cm (LxWxH) |
Data sheet
Specific References
TS-Optics CD-APO Deluxe 155 OTA This 155 mm FPL55 and lanthanum air-spaced triplet has a 1240 mm focal length and f/8 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics CD-APO Deluxe 155 OTA · Specifications checked against manufacturer data on 2026-11-04
