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
Scheda tecnica
Apertura
80 mm
Back focus
135 mm from the 2" connection and 170 mm from the female M68 thread
Trattamento
fully multi-coated
Diametro del paraluce
103.3 mm
Focale
480 mm
Rapporto focale
f/6
Focheggiatore
2.5" RAP with 1/11 dual speed, reinforced plain bearings
Attrezzatura indicata dal produttore
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
Codice produttore
TLAPO804-OT
Modello
TS-Optics Photoline 80 ED Triplet OTA
Diametro del tubo
89 mm
Materiale del tubo
aluminum
Peso del tubo
3.14 kg with tube rings
Riferimenti Specifici
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
