TS-Optics 110 mm f/6 Flatfield APO refractor with 1.0x full format corrector

The compact Apo offers very good color correction thanks to two special lenses and is equipped with an optimized, screwed full-format corrector for astrophotography.

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

♦ 2-element APO lens with ED glass and lanthanum glass from Ohara-Optics

♦ 3-element 1.0x full format corrector with M48 camera connection and working distance 55 mm - working distance is optimized for this lens - everything is screwed together - the corrector is designed for full format.

♦ 2" filter thread and 360° rotation are included

♦ The working distance can be extended to 93 mm, then you have an M68x1 connection thread

♦ 2" Visual-Back can be screwed to the focuser instead of the corrector, for observation with 1.25" and 2" accessories

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

♦ CNC pipe clamps - aluminum tube - retractable dew cap

♦ Delivered in a high-quality aluminum transport case

♦ Made in Taiwan

TS 110mm f/6 flatfield apo for astrophotography
With its fast aperture ratio of f/6, the Apo is faster than simple EDs, which usually have f/7 to f/9. In order to still achieve good color correction, the ED special glass was supplemented by another special glass (lanthanum glass). This achieves good color correction.

All lens surfaces are coated with a multi-coating for maximum light throughput. Apertures inside the optical tube and in the focuser prevent reflections and ensure sharp, high-contrast images.

The Apo has a high-quality 2.7" rack-and-pinion focuser with ball bearings. This guarantees sensitive and precise focusing even with heavy accessories. The focuser of course offers a 1:10 micro reduction and a 360° rotation for selecting the right one image section.
 
The 1.0x full frame corrector for astrophotography
The 3-element corrector is screwed to the focuser via the M74x1 external thread. This prevents tipping. The working distance of the corrector has been optimized for this lens. All adapters are of course included in the scope of delivery.

On the camera side, the corrector has an M48x0.75 connection thread. The working distance from the M48 thread is 55 mm. Then you will have optimal sharpness performance on the axis and in the field. The M48 adapter also offers an internal thread for 2" filters.

For individual adaptations, the working distance can be extended up to 93 mm, then you have an M68x1 connection thread and can, for example, adapt off-axis guiders or large filter wheels.

The extensive equipment is complemented by sturdy CNC pipe clamps and a sturdy transport and storage case.
Opening: 110mm
Focal length: 660mm
Aperture ratio: f/6
Lens: Advanced 2-element SD-APO lens
Special glasses: ED special glass and lanthanum glass
Eyepiece focuser: 2.7" rack and pinion focuser with ball bearings
Micro reduction: yes
Intermediate thread for screw adaptations: M74x1 external thread
360° rotation: yes
Tube: Aluminum CNC tube
Dew protection cap: retractable
Corrector: 3-element full format corrector with M68x1 connection thread
Weight: 10kg
Dimensions of the transport case: 730 x 280 x 260 mm
♦ 110mm Apochromat (OTA)
♦ CNC pipe clamps
♦ 2" and 1.25" reduction
♦ Dust caps
♦ Aluminum transport case
♦ Adapter from M74x1 to M68
♦ 3-element full format corrector with dust caps
♦ M68 extension to optimize the working distance