This telescope is checked, measured and adjusted if necessary before delivery. The focuser is set. Upon request, you will receive a meaningful quality certificate from your telescope (test report with star test, Ronchi, adjustment, with individual serial number) included! Please specify with order!
Examples of our test protocols: test recordings
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 TS-Optics TSQ-80APO 80mm f / 6.8 Quadruplet Apo with field leveling

The TSQ-80APO is an ideal telescope for mobile astrophotography with a color-pure image and a fully corrected field of view.

♦ 80 mm aperture / 544 mm focal length / aperture ratio f / 6.8

♦ 3-element FPL53 triplet lens for pure color imaging and 2-element image field corrector for a flat image field

♦ The corrector is installed in the tube and not in the extension tube. As soon as you have focused the camera or eyepiece, you are automatically at the right working distance and have perfect stars right up to the edge.

♦ 45 mm image circle with full illumination and correction also enables the use of full-frame cameras

♦ 2.5 "CNC rack extension with ball bearing and micro reduction, also for heavy accessories

♦ Generous working distance for easy adaptation of all common cameras and accessories and also suitable for observation with 2 "and 1.25" accessories

♦ 2 "and 1.25" adaption with ring clamp for common adapters and diagonal and an M68x1 internal thread for screwed adaptions

♦ Retractable dew cap for easy transportation

♦ CNC clamps and GP / EQ5 level prism rail are included




TSQ-80APO Quadruplet-Apo with permanently installed field correction
The color-pure FPL53 triplet lens of the TS-Optics Photoline Apos 80 mm f / 6 is very popular with star lovers. Now we have combined this excellent lens with a built-in field corrector for astrophotography. The result is a color-pure apochromatic refractor with perfect field flattening for astrophotography and for observation. You will have a perfect star image in the field right from the start, without the tedious search for correctors and the right distance.

Features and benefits of the TSQ-80APO:

♦ Modern 80 mm f / 6 FPL53 triplet lens
♦ Integrated 2-element field corrector with optimized distance from the lens for optimal field sharpness with a slight focal length extension
♦ No tedious adapter battle - if the image is sharp, you are automatically at the right distance
♦ 2.5 "CNC rack and pinion pull-out with ball bearings and 1:10 micro reduction
♦ Each quadruplet apo is checked by Teleskop-Service before shipping.
♦ The moderate aperture ratio of f / 6.8 is well suited for DSLR cameras and astro cameras.
♦ With a working distance of 135 mm from the 2 "receptacle, 2" zenith mirrors can also be used.

A first-class and portable apochromat for astrophotography:
Our goal was to achieve an uncompromising image quality on the axis AND in the field without additional flatteners or correctors. The corrector must be installed permanently and, of course, be at an optimal distance from the lens. This can only be achieved with difficulty and many adapters using an optional flattener. In addition, the apochromat must be mechanically solid and easily adjustable. This has been achieved with the Flatfield Apo.

You can simply adapt your camera to the 2 "plug adapter or via the M68 thread, focus and are automatically at the right distance. Your images will be sharp and rich in contrast right up to the edge.

The focuser is stable and especially designed for heavy cameras. Heavy accessories can also be used thanks to the pinion adjustment. The clamp is securely locked by blocking the adjustment. The micro-reduction enables precise focusing, so you can make optimal use of the good image.

Adaptation of cameras to the extract

Thanks to the generous working distance of 135 mm from the 2 "receptacle or 155 mm from the M68 thread, all cameras can be adapted with any accessories. The generous adjustment range of the focuser of 90 mm makes reaching the focus a breeze. Below are a few standards -Adaptionen:

♦ Connection of DSLR cameras to the 2 "receptacle with T2 thread ... We recommend the adapter # TSFA240 and the matching T2 ring.

♦ Connection of cameras with large sensors to the 2 "receptacle via the M48 connection thread ... With the connection sleeve # TSVF230 you can connect the camera without a T2 bottleneck.

♦ Connection of heavy cameras to the M68x1 internal thread: From the internal thread there is a generous working area of ​​155 mm available (with the extension tube fully retracted). With the adapter # M68a-M68a you can turn the internal thread into an external thread



Opening: 80 mm
Focal length: 544 mm
Aperture: f / 6.8
Lens: FPL53 triplet lens with air gap
Corrector: 2-element corrector at an optimized distance from the lens
Image field: 45 mm diameter with full correction and illumination
Back focus from 2 "receptacle: 135 mm with retracted extension tube
Back focus from M68x1 internal thread: 155 mm with retracted extension tube
Adjustment range of the pull-out: 90 mm
Tube length with inserted dew cap: 375 mm
Tube diameter: 89 mm
Dew cap diameter: 112 mm
Camera side connection: 2 ", 1.25" and M68x1 internal thread
Tube weight with pipe clamps: 3.5 kg
Load capacity of the pull-out: up to 5 kg


♦ 80 mm quadruplet apochromatic
♦ CNC pipe clamps
♦ GP / EQ5 level prism rail with photo tripod connection
♦ 2.5 "RPA pull-out with 2" socket
♦ Reduction from 2 "to 1.25"