Manufacturer: -TS Teleskope
Product number: TSAPO155f8

EUR 4.795,00RRP EUR 5.255,00you save 8.8% (EUR 460,00)


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TS-Optics CF-APO 155 mm f/8 FPL55 Triplet Apochromat
The largest apo from Teleskop-Service is the inexpensive entry into the world of really big refractors. Such a telescope offers joy for a lifetime and is an attraction in every observatory. This apochromatic refractor offers a number of interesting features:
Apochromatic triplet lens with FPL55 as APO element and additional special lanthanum glass for even better chromatic correction.
Improved cell for even more adjustment stability, the cell is adjustable via pull and push screws.
A very good 3.7" focuser with rack and pinion drive. The drawtube is ball bearing mounted for precise adjustment even under heavy loads, for example by heavy cameras.
Generous working distance of 140 mm from the 2" receptacle, which can be further extended by a removable segment between tube and focuser. This even allows the use of binoviewers without glass path compensation.
Each apo is delivered with a test certificate by the manufacturer. The apochromat is given a serial number. In addition, each apo is tested on the optical bench at Teleskop-Service and optimally calibrated again.



Astrophotography with the TS CF-APO 155 mm
Basically the apo can be combined with all suitable correctors. We especially recommend the following correctors, which are linked in the recommended accessories.

TSFLAT3 - 1.0x corrector
The corrector is screwed directly onto the M92 thread of the focuser. The corrector provides illumination and correction up to 60 mm image circle diameter. The focal length is not changed.

TSRedJM63B - 0.8x corrector
The corrector is screwed directly onto the M63 thread of the focuser. It reduces the focal length to 992 mm and improves the focal ratio to f/6.4. The corrector provides illumination up to 42 mm image circle diameter.

TSAPORED075 - 0.74x corrector
The corrector is screwed to the M92 thread of the focuser with the Adapter M92A-M88i (optional, linked in the accessory section). It reduces the focal length to 917 mm and improves the focal ratio to f/5.92. The corrector provides illumination up to 44 mm image circle diameter.

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Technical Information
Teleskop-Service has collected a lot of helpful information about refractors and provided it in English as a PDF file: Refractors
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
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)
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)
155 mm apo
Losmandy style dovetail bar
Test certificate
Transport case

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin

First Light at a customer
Roman Vanur from the Czech Republic (https://astrofotky.cz/~rick) captured a nice image of the Orion Nebula as First Light:

Object: Orion Nebula (M 42)
Photographer: Roman Vanur (Czech Republic)
Imaging date: 2022-02-12
Telescope: TS-Optics CF-APO 155 mm f/8 Deluxe Triplet Apo (TSAPO155f8)
Imaging corrector: TS Flat 3" (TSFlat3)
Imaging camera: Fujifilm GFX 50S
Auto guiding: Lacerta MGEN II (MGEN-3 as successor)
Mount: Skywatcher EQ6-R PRO SynScan (EQ6-R)
Exposure: 11x 8 min / ISO 100

Congratulations on this beautiful "First Light"!

Question:
Does the EAF motor focus fit to the CF Apos from Teleskop-Service??

Answer from Teleskop-Service:
The EAF fits directly without additional adapter to the focusers of the CF Apos.


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Reviews

Written by Walter Renes
on 2021-10-05

"Initial impression: very well made, beautiful scope. But beware, it is bigger and heavier than its 155mm diameter suggests: still easy to carry but one needs a very good mount for this. I expect it will be fine on my Celestron CGX-L. I have not used the telescope yet: as always bad weather after scope purchase!"