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TS-Optics CF-APO 155mm f/8 Deluxe Triplet APO Refractor - with test certificate

TS's largest apochromatic refractor is the optimal telescope for astrophotography and demanding amateur astronomy

♦ 155mm aperture / 1240mm focal length / f/8 focal ratio

♦ First-class color correction by triple lens FPL55 (comparable to FPL53)

♦ Multiple coating on each glass-air surface

♦ Indoor screens

♦ RAP Deluxe 3.7" focuser - bearings - with connection thread M63x1 and M92x1 for correctors

♦ 140mm working distance can be extended to 240mm by unscrewing the extension between the focuser and tube

♦ Micro reduction and 360° rotation available

♦ Extendable dew shield

♦ The apo weighs only 13 kg - carried by an EQ6 class mount

♦ Each TS 155 mm CF-Apo comes with serial number and certificate

♦ Supplied in a high quality carrying case

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receive it in usually 7 to 9 working days

TS-Optics CF-APO 155mm f/8 FPL55 triplet apo

Teleskop-Service's Biggest Apo is the inexpensive entry into the world of really big refractors. Such a telescope offers joy for a lifetime and is an ornament in every observatory. This apochromatic refractor offers a number of interesting features:

♦ Triple apochromatic lens with FPL55 as APO element and additional special lanthanum glass for even better color correction.

♦ Improved frame for even more adjustment stability, the frame can be adjusted using tension and pressure screws.

♦ A very good 3.7" rack and pinion focuser. The focuser has ball bearings for precise adjustment even under high loads, eg from heavy cameras.

♦ Wide 140mm working distance from the 2" barrel, which can be extended with a removable segment between the tube and focuser. The focuser fits directly into the tube. It is even possible to use binoculars without glass path compensation.

♦ Each Apo is supplied with a manufacturer's test certificate. The apochromat receives a serial number. Furthermore, every apo in Teleskop-Service is tested on the optical bench and optimally recalibrated.

Astrophotography through the TS 155mm Apo

In principle, Apo can be combined with all suitable correctors. We highly recommend the following concealers, which are linked in the recommended accessories.

TSFLAT3 - Checker 1.0x

The corrector screws directly onto the M92 thread of the focuser. The corrector offers illumination and correction of up to 60mm image circle diameter. The focal length does not change.

TSRedJM63B - Corrector 0.8x

The corrector screws directly onto the M63 thread of the focuser. It reduces the focal length to 992mm and improves the aperture ratio to f/6.4. The corrector offers illumination up to 42mm image circle diameter.

TSAPORED075 - Corrector 0.74x

The corrector is screwed to the focuser with the adapter M92A-M88i (optional, linked in the accessories area). It reduces the focal length to 917mm and improves the aperture ratio to f/5.92. The corrector offers illumination up to 44mm image circle diameter.


Aperture: 155 mm
Focal length: 1240 mm
Focal ratio: f/8
Lens: Triplet lens, air-spaced
Special glasses: FPL55 and lanthanum glass
Cell: Adjustable cell - reinforced
Coating: Multi-coating on every glass-air surface
Working distance: 140 mm from the 2" receptacle of the focuser
Connecting element focuser tube: Length 100 mm - removable - this extends the working distance to 240 mm.
Connectors eyepiece side: 1.25", 2", M63x1 female thread, M92x1 female thread
Focus travel: 100 mm
Tube diameter: 156 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)
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