Telescope TS PHOTOLINE 80 F/6 Crayford

A fast and highly corrected apochromatic. Its compact dimensions make it a perfect travel telescope, also ideal for astrophotography.
♦ Aperture 80 mm

♦ Focal length 480 mm / Focal ratio f / 6

♦ Triplet with FPL53 element - no false color

♦ Rapidly cooling aluminum tube

internal baffles

♦ One of the best 2.5" focusers in its class - plain bearing mounted drawtube - rack and pinion adjustment - designed for high payloads

♦ 2" receptacle and M68x1 female thread can be used for bolt-on adaptations

♦ Retractable dew cap for easy transport - a very slim travel telescope with only 3 kg weight and 37.5 cm transport length

A perfect traveling apochromatic: for observation and astrophotography
Under the main direction of Teleskop-Service, this high-quality APO Photoline Triplet with FPL53 element from Ohara (Japan) came to life as an optimal traveling apochromatic.

Even at higher magnification, the image has no annoying chromatic error, with excellent correction at the same time. It is one of the best and fastest 80mm apos we have seen. The fast f/6 focal ratio not only keeps the refractor very short, but also provides short exposure times for astrophotography.

The best mechanics guarantee excellent image quality over the years and success in astrophotography.
Even the best optics can be used successfully only if the mechanics are right. Here, savings were often made in the wrong place. This is not the case with Photoline 80 mm f / 6 apo.

The advantages and features at a glance:

♦ Rack and pinion focuser, mounted on plain bearing. The mount is decoupled from the drive of the drive tube.
♦ Large drive tube with 60 mm clear aperture for full illumination even if full frame sensors are used.
♦ 1:10 double speed system for ultra-precise focusing
♦ High-quality CNC tube with internal baffle and very good internal blackening, no disturbing stray light
♦ M68x1 (female) thread allows screwed and thus stable adaptations for astrophotography
♦ Retractable spray cap: only 37.5 cm transport length
♦ Modern, multi-coated 3-element lens with FPL53 as APO element
♦ High-quality CNC rings and GP-style dovetail bar with photographic thread connection
♦ Each ring has 3 M6 (female) threads on top, one of them in the middle, two at 30 mm distance on the side
♦ Finder shoe is mounted

Lens design: apochromatic triplet with FPL53 element
Coating: fully multi-coated
Aperture: 80 mm
Focal length: 480 mm
Focal ratio: f / 6
Tube material: aluminum
Tube length with retracted dew shield: 375 mm
Tube length with extended dew shield: 435 mm
Tube diameter: 89 mm
Diameter of the spray hood: 112 mm
Thread between tube and focuser: female thread M86x1 on the tube side (only important when changing the focuser)
Spray hood design: retractable
Tube weight: 3.14 kg with tube rings
Focuser: 2.5" RPA with 1/11 double speed, reinforced plain bearings
Eyepiece side connections: M68x1, 2" and 1.25" female thread
Back focus: 135 mm from the 2" connection and 170 mm from the M68 female thread
Focuser maximum load: 5 kg
Draw tube travel: 75 mm

Delivered:

80/480 mm APO triplet

♦CNC aluminum tube with rings and dovetail bar

♦ 2.5" RPA focuser with dual speed drive and 1.25" reducer
♦ shoe finder (assembled)