TS-Optics 80 mm f/4.8 FPL53 Triplet Apo with Corrector for Astrophotography

Fast travel apochromat for astrophotography and observation with 80 mm aperture

The triplet objective with 80 mm aperture and 480 mm focal length convinces with a very good chromatic correction due to the FPL53 APO element. It is one of the best 80 mm apochromatic lenses in the range of Teleskop-Service.

The 3-element 0.8x image field corrector is designed for 80 mm f/6 triplet apos and brings full correction up to full frame. The corrector is screwed to the 2.5" rack and pinion focuser to prevent tilting. The working distance from the M48 thread is 55 mm, which simplifies the adaptation of astro cameras. A 2" filter thread is also integrated in the camera adapter.

Astrophotographic results obtained with this telescope on Astrobin

Here are some astrophotographs made with this telescope model, convince yourself of the chromatic purity of the lens and the sharpness in the field: Link to Astrobin

Best mechanics guarantee excellent imaging for years and success in astrophotography

The best optics can only be used successfully if the mechanics are right. With this photo apo, we have placed a lot of emphasis on first-class components.

Rigidly mounted focuser with rack & pinion (gear drive) adjustment. The bearing is decoupled from the adjustment of the draw tube.

Oversized draw tube with 60 mm clear aperture for full illumination even at full format.

1:10 dual-speed for ultra-accurate focusing

High-quality CNC tube with inner baffles and very good inner blackening - no disturbing stray light

M63x1 female thread on draw tube

M68x1 female thread on the connection adapter, to get to the thread 3 grub screws have to be loosened.

The dew shield can be pushed in - the transport length is then only 37.5 centimeters

Modern and multicoated 3-element objective with APO element made of FPL53

High-quality CNC rings and GP style dovetail bar with photo tripod connection

Tube rings each have three M6 threaded holes on top, one in the center and two with 30 mm center distance

Finder shoe is already mounted

The visual use - spotting scope and astronomical travel telescope

Although the apo is optimized for astrophotography, it can also be used visually very well. Simply unscrew the corrector and insert the 2" receptacle. Now you can observe through the telescope with 1.25" or 2" star diagonal or Amici prisms and magnify up to about 200x with very high contrast.

Technical Information

Teleskop-Service has collected a lot of helpful information about refractors and provided it in English as a PDF file: refractors.pdf