TS-Optics CF-APO 130 FPL55 Triplet OTA This 130 mm FPL55 air-spaced triplet has a 910 mm focal length and f/7 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics CF-APO 130 FPL55 Triplet OTA · Specifications checked against manufacturer data on 2026-11-04
This 130 mm FPL55 air-spaced triplet has a 910 mm focal length and f/7 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Focusing and mechanical design
The 3.7-inch ball-bearing rack-and-pinion focuser supports up to 8 kg and offers dual-speed focus, rotation and M92, M82 and M63 threads.
Imaging configuration
The standard 140 mm backfocus can extend to 240 mm by removing the 100 mm tube segment. The optional matched 0.8× corrector gives 728 mm f/5.6; it is not part of the native optical system.
Compatibility notes
Original TSCFAPO130. 140 mm backfocus is from the 2-inch receptacle; removing the 100 mm extension increases it to 240 mm. The corrector settings remain separate.
Additional specifications
Extension tube between tube and focuser
M124x1 thread (male/female) with a length of 100 mm and a 1.5 mm undercut on the 8 mm male thread
Eyepiece side connections
M92x1, M82x1 and M63x1 female threads, and 2" 1.25" connection
Length with dew shield retracted
85 cm
Focuser accessory rating
8 kg
Backfocus without extension
240 mm from 2-inch receptacle
70689
Data sheet
Aperture
130 mm
Backfocus
approx. 140 mm
Dew shield
Extendable
Dew shield diameter
169 mm
Ed glass
FPL55
Focal length
910 mm
Focal ratio
f/7
Focuser
3.7" RPA dual-speed rack and pinion focuser with ball bearings
Length with dew shield extended
95 cm
Manufacturer listed equipment
130 mm f7 APO refractor with metal tube Dust caps CNC tube rings with carrying handle Losmandy style dovetail bar Carrying case Certificate
Manufacturer part number
TSCFAPO130
Model
TS-Optics CF-APO 130 FPL55 Triplet OTA
Objective
Multicoated APO triplet objective with two special glasses
Tube
CNC metal tube, M124 female thread at the focuser side
Tube diameter
141 mm
Weight
11 kg
Specific References
MPN
TSCFAPO130
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TS-Optics CF-APO 130 FPL55 Triplet OTA This 130 mm FPL55 air-spaced triplet has a 910 mm focal length and f/7 focal ratio. It is intended for visual astronomy and astrophotography with the appropriate camera train.
Manufacturer model: TS-Optics CF-APO 130 FPL55 Triplet OTA · Specifications checked against manufacturer data on 2026-11-04
