Ts-Optics 100 mm f/6 Flatfield APO Refractor with 1.0x Full-Frame Corrector

TS 100 mm f/6 Flatfield Apochromat for Astrophotography

With the fast focal ratio of f/6, the apo is faster than simple EDs, which normally have f/7 to f/9. To still achieve good chromatic correction, the ED special glass was supplemented by another special glass (lanthanum glass). Thus a good chromatic correction is achieved.

All lens surfaces are multi-coated for maximum light transmission. Baffles inside the optical tube and in the focuser prevent reflections and ensure sharp and high-contrast images.

The apo has a high-quality 2.7" rack and pinion focuser with ball bearings. This guarantees sensitive and accurate focusing even with heavy accessories. Of course, the focuser offers 1:10 dual speed and 360° rotation for selecting the correct image section.

The 1.0x full-frame corrector for astrophotography

The 3-element corrector is screwed to the focuser via the M74x1 male thread. This prevents tilting. The working distance of the corrector has been optimized for this objective. 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 the optimal sharpness performance on the axis and in the field. The M48 adapter also offers a female thread for 2" filters.

For individual adaptations, the working distance can be extended up to 96 mm, then you have an M68x1 connection thread and can adapt off-axis guiders or large filter wheels, for example.

The extensive equipment is complemented by rigid CNC tube rings and a rugged transport and storage case.

Technical Information

Teleskop-Service has collected a lot of helpful information about refractors and provided it in English as a PDF file: refractors.pdf