TS-Optics CF-APO 80 mm f/6 FPL55 Triplet APO Refractor with Certificate

TS CF-APO 80/480 mm FPL55 Triplet Apochromat

The 80 mm apo is pure in colour and bright in light and is equally suitable for visual observation and astrophotography. Thanks to the FPL55 APO element (comparable to FPL53) the image is first-class and in practice cannot be distinguished from the world-famous LZOS lenses from Russia.

The APO is very compact and is well supported by small mounts from EQ3 class. It is ideal for mobile use. The extra long dovetail bar makes it possible to use heavy cameras and still keep the telescope balanced on the mount or phototripod.

The objective of the 80 mm apo:

The triplet lens with 80 mm aperture and 480 mm focal length fulfils the criteria of a full apo. Even at magnifications of 300x, the image is free of annoying chromatic aberrations. Even bright stars are shown on astrophotos without disturbing blue fringes.

The APO element consists of FPL55. A further special glass supports chromatic correction. The air-spaced triplet objective is fully adjustable. Each optical glass-air surface is multi-coated. The objective is in a temperature compensated, adjustable cell.

The photographic 2.5" rack&pinion focuser:

The 2.5" CNC focuser is optimized for photography and can handle a load of up to 6 kg. The adjustment of the draw tube is done by gear drive. We also offer motorized focusing for the focuser. An M63x1 internal thread is available for screwed adaptations.

Astrophotography with the apochromat

To achieve the optimal imaging in the field, a corrector is needed. The corrector is screwed directly to the M63 thread of the apo. We recommend two correctors, both are suitable for cameras up to full format. The working distance from the M48 thread to the sensor is 55 mm.

TSCFRED80 - 0.8x corrector: The corrector is specially calculated for this apo. It reduces the focal length to 384 mm and improves the focal ratio to f/4.8.

TSFLAT25koll - 1.0x corrector: The corrector provides maximum illumination. It does not change the focal length and focal ratio. The working distance from the M48 thread is variable and can be fixed at 55 mm by simply setting 26.2 mm on the corrector.

Video

TS has made a video about the CF Apos:

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.pdf

Astrophotographic results obtained with this telescope on Astrobin

Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Photographs by a customer

Our customer David Cruz from Lisbon (Portugal) took nice pictures of three nebulae:

Object: Emission nebula IC 1284 in Sagittarius

Photographer: David Cruz
Telescope: TS-Optics CF-APO 80 mm f/6 FPL55 Triplet Apo (TSCFAPO80)
Motorfocus: ZWO EAF (ZWO-5V-EAF-A)
Imaging corrector: TS-Optics REFRAKTOR 0.8x Corrector (TSCFRED80)
Filter wheel: ZWO EFWmini 5x1.25 (ASIEFWmini)
Filters: Astronomik H-alpha 6 nm (8h00f3), Astronomik LRGB (8h0039)
Imaging camera: ZWO ASI183MM Pro (ASI183MMPRO)
Guiding scope: William Optics UniGuide 50 mm (M-G50PB-WR)
Guiding camera: ZWO ASI120MM Mini (ASI120mini)
Mount: iOptron CEM26 (C26A)
Control: ZWO ASIAIR Pro (ASIAIRPLUS as successor)


Object: Elephant´s Trunk Nebula in the Cepheus Nebula (IC 1396)

Photographer: David Cruz
Telescope: TS-Optics CF-APO 80 mm f/6 FPL55 Triplet Apo (TSCFAPO80)
Motorfocus: ZWO EAF (ZWO-5V-EAF-A)
Imaging corrector: TS-Optics REFRAKTOR 0.8x Corrector (TSCFRED80)
Filter wheel: ZWO EFWmini 5x1.25 (ASIEFWmini)
Filters: Astronomik H-alpha 6 nm (8h00f3), O-III 6 nm (8H00N6), L-Filter from LRGB set (8h0039)
Imaging camera: ZWO ASI183MM Pro (ASI183MMPRO)
Guiding scope: William Optics UniGuide 50 mm (M-G50PB-WR)
Guiding camera: ZWO ASI120MM Mini (ASI120mini)
Mount: iOptron CEM26 (C26A)
Control: ZWO ASIAIR Pro (ASIAIRPLUS as successor)


Object: Cygnus Waves (LBN 331)

Photographer: David Cruz
Telescope: TS-Optics CF-APO 80 mm f/6 FPL55 Triplet Apo (TSCFAPO80)
Motorfocus: ZWO EAF (ZWO-5V-EAF-A)
Imaging corrector: TS-Optics REFRAKTOR 0.8x Corrector (TSCFRED80)
Filter wheel: ZWO EFWmini 5x1.25 (ASIEFWmini)
Filters: Astronomik H-alpha 6 nm (8h00f3), Astronomik LRGB (8h0039)
Imaging camera: ZWO ASI183MM Pro (ASI183MMPRO)
Guiding scope: William Optics UniGuide 50 mm (M-G50PB-WR)
Guiding camera: ZWO ASI120MM Mini (ASI120mini)
Mount: iOptron CEM26 (C26A)
Control: ZWO ASIAIR Pro (ASIAIRPLUS as successor)

Many thanks to David Cruz for the great pictures!

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.

Safety informations: PDF Download