TS-Optics Photoline 140 Carbon OTA This 140 mm air-spaced triplet with two ED elements has a 910 mm focal length and f/6.5 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics Photoline 140 Carbon OTA · Specifications checked against manufacturer data on 2026-11-04
This 140 mm air-spaced triplet with two ED elements has a 910 mm focal length and f/6.5 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Focusing and mechanical design
The carbon-fibre tube is paired with a 4-inch rack-and-pinion focuser, 110 mm travel and M102, M88 and M68 interfaces. Camera framing is adjustable by 360° rotation.
Imaging configuration
The manufacturer lists a 10 kg tube, 735 mm retracted length and 179 mm dew-shield diameter. Rings, handle, Losmandy-style rail and a case are listed. A matched flattener or reducer is separate.
Additional specifications
Length of tube
735 mm with dew shield retracted
Weight of optical tube
10 kg
Threads at camera side
M102x1 male, M88x1 female, M68x1 female
360 rotation
yes
Focuser design
4-inch dual-speed rack-and-pinion
69556
Data sheet
Aperture
140 mm
Coating
Multi-coating on every glass-air surface
Dew shield diameter
179 mm
Focal length
910 mm
Focal ratio
f/6.5
Focuser
Screw threads for photo adaptations, 2" and 1.25" adaption
Focuser travel
110 mm
Manufacturer listed equipment
140 mm apochromat Finder shoe CNC tube rings Carrying handle Losmandy style dovetail bar Transport case TS Startest
Manufacturer part number
TSAPO140CF
Model
TS-Optics Photoline 140 Carbon OTA
Optical design
Triplet apochromat with 2 ED elements
Tube diameter
148 mm
Tube material
Carbon
Specific References
MPN
TSAPO140CF
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TS-Optics Photoline 140 Carbon OTA This 140 mm air-spaced triplet with two ED elements has a 910 mm focal length and f/6.5 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics Photoline 140 Carbon OTA · Specifications checked against manufacturer data on 2026-11-04
