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

The apochromatic refractor with 80 mm aperture and 480 mm focal length offers highest optical and mechanical performance for astrophotography and amateur astronomy

♦ Aperture 80 mm

♦ Focal length 480 mm / focal ratio f/6

♦ First-class color correction with FPL55 triplet lens

♦ Internal baffles

♦ High quality metal tube with CNC tube rings

♦ Retractable dew shield

♦ 2.5" RAP focuser - ball bearing with M63x1 connection thread for screw adaptions

♦ Micro-reduction and 360° rotation of the focuser

♦ Each TS-Optics CF-APO comes with a test certificate and serial number

♦ Sturdy transport case, carrying handle and dovetail bar included in delivery

♦ 0.8x corrector for astrophotography available - specially calculated for this telescope


 

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.

 

Aperture:	80 mm
Focal length:	480 mm
Focal ratio:	f/6
Objective:	Multicoated APO triplet lens - FPL55
Tube:	CNC metal tube
Weight:	3.5 kg
Dew shield:	retractable - can be fixed with one screw
Focuser:	2.5" CNC focuser
Connections on the eyepiece side:	2", 1.25" and M63x1 female thread
Tube length:	380 mm (retracted dew cap)
Tube diameter:	90 mm
Dew cap diameter:	103 mm

In the box:
♦ TS 80/480 mm apochromat metal tube
♦ CNC tube rings
♦ Carrying handle
♦ Vixen style dovetail bar
♦ Transport case