TS-Optics Photoline 80 ED Triplet OTA This 80 mm FPL53 air-spaced triplet has a 480 mm focal length and f/6 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics Photoline 80 ED Triplet OTA · Specifications checked against manufacturer data on 2026-11-04
This 80 mm FPL53 air-spaced triplet has a 480 mm focal length and f/6 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Focusing and mechanical design
The 2.5-inch RAP focuser has 75 mm travel, a 5 kg accessory rating and M63/M68 female threads. The aluminium tube measures 375 mm with the dew shield retracted or 435 mm extended.
Imaging configuration
A matched corrector is optional for flat stars across a large sensor. In the stated TSFlat25DEL configuration the M48-to-sensor spacing is 65 mm, rather than a universal 55 mm. Fine-focus gearing differs between the source table and prose; see the qualification.
Manufacturer technical table states 1:11 fine gearing; prose states 1:10. Table retained with discrepancy explicit. TSFlat25DEL spacing of 65 mm is specific to the described adapter configuration, not universal 55 mm.
Additional specifications
Objective design
apochromatic triplet with FPL53 element
Tube length with retracted dew shield
375 mm
Tube length with extended dew shield
435 mm
Thread between tube and focuser
M86x1 female thread on the tube side (only important when exchanging focuser)
Dew shield design
retractable
Connections on the eyepiece side
M63x1 and M68x1 female thread, 2" and 1.25"
Maximal load of focuser
5 kg
Drawtube travel
75 mm
51021
Fiche technique
Diamètre
80 mm
Backfocus
135 mm from the 2" connection and 170 mm from the female M68 thread
Traitement
fully multi-coated
Diamètre du pare-buée
103.3 mm
Focale
480 mm
Rapport F/D
f/6
Porte-oculaire
2.5" RAP with 1/11 dual speed, reinforced plain bearings
Équipement indiqué par le fabricant
80/480 mm triplet apo CNC aluminium tube with rings and dovetail bar 2.5" RAP focuser with dual speed transmission and 1.25" reducer Finder shoe (mounted) TS Star Test
Référence fabricant
TLAPO804-OT
Modèle
TS-Optics Photoline 80 ED Triplet OTA
Diamètre du tube
89 mm
Matériau du tube
aluminum
Poids du tube
3.14 kg with tube rings
Références spécifiques
MPN
TLAPO804-OT
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TS-Optics Photoline 80 ED Triplet OTA This 80 mm FPL53 air-spaced triplet has a 480 mm focal length and f/6 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics Photoline 80 ED Triplet OTA · Specifications checked against manufacturer data on 2026-11-04
