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TS-Optics 110mm f/6 ED APO - FPL51 - Lanthanum Lens - 2.7" RAP Focuser - Tube Rings

The bright 110mm ED APO offers good color correction through two special lenses, it is designed for observation and astrophotography.

♦ 110mm aperture / 660mm focal length / f/6 focal ratio

♦ 2-element ED lens with FPL51 and lanthanum lenses

♦ Fully multi-coated for high contrast

♦ 2.7" RAP focuser with ball bearing, 360° rotation and micro reduction

♦ Intermediate thread M74x1 for screw adaptations

♦ CNC tube rings - aluminum tube - retractable dew cap

♦ Aluminum carrying case

♦ Made in Taiwan

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TS 110mm F6 F660mm ED doublet refractor

With the fast f/6 aperture ratio, the ED is faster than single EDs, which typically have f/7 to f/9. To achieve good color correction, the special glass FPL51 was supplemented with another special glass (lanthanum glass). This achieves a correction that corresponds to a normal ED refractor from f/7 to f/8. High light intensity also offers advantages for astrophotography, you can expose an object in just one night. Matching 1.0x flatteners can be found in the accessories section.

All lens surfaces are multi-coated for maximum light output. Screens within the optical tube and on the focuser prevent reflections and ensure sharp, high-contrast images.

The TS 110mm ED has a high quality 2.7" rack and pinion focuser with ball bearings. This ensures sensitive and precise focusing even with heavy accessories. The focuser accepts 2" and 1.25" accessories. correctors of common image field.

The extensive equipment is complemented by stable CNC tube clamps and a stable transport and storage case.


Aperture: 110 mm
Focal length: 660 mm
Focal ratio: f/6
Objective: Advanced 2-element ED objective
Special glasses: FPL51 and lanthanum glass
Focuser: 2.7" rack & pinion focuser with ball bearings
Micro reduction: yes
360° rotation: yes
Intermediate thread for screw adaptations: M74x1 female thread
Tube: Aluminium CNC tube
Exchange cap: retractable
Working distance: 140 mm from the 2" receptacle
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