70 mm f/6.78 ED 4-Element Flatfield Refractor Telescope

70 mm f/6.78 ED 4-Element Flatfield Refractor Telescope

70 mm f/6.78 ED 4-Element Flatfield Refractor Telescope

TS-OPTICS

The SD apo is an ideal travel telescope for all photographers. The telescope is very well corrected by the built-in corrector on the axis and in the field.

Available Upon Request

Available Upon Request

In this case, we do not keep the products in stock but are only available upon pre-order. As soon as we receive your order, we will notify you by e-mail or phone, about the exact delivery time.

Availability: In stock
SKU
TSED70Q

70 mm f/6.78 ED 4-Element Flatfield Refractor Telescope

TS-Optics 70 mm f/6.78 SD travel refractor for observation and astrophotography

The SD apo is an ideal travel telescope for all photographers. The telescope is very well corrected by the built-in corrector on the axis and in the field. In addition, the SD apo also offers a decent visual performance. Magnifications of up to approx. 150x are well handled by the lens, the chromatic error is significantly reduced. We recommend the telescope for all photographers who are looking for a portable, inexpensive and yet well corrected refractor for photography and observation. Since the corrector is built into the tube, the costly adapter battle is no longer necessary. Simply focus and you are automatically at the optimal distance.

The connection of accessories:

The TSED70Q has a very comfortable working distance of 135 mm from the 2" receptacle, so you can use 2" star diagonal mirrors and eyepieces and you can focus with ease.
To connect a camera, we recommend the adapter TSFA240, this adapter has 40 mm length and a T2 thread on the camera side. With this adapter you can connect all common DSLR, system or astro cameras. In addition, the focuser has an M54x0.75 female thread for screwed adapters.

More Information
Net Weight (g) 2800
Optical design Apochromatic Refractor
Aperture (mm) 70
Focal length - F (mm) 474
Focal ratio (f/) 6,78

Specifications:

  • Objective: 2-element SD lens with FPL51 and Lanthanum special glass
  • Corrector: 2-element corrector installed in the tube
  • Focuser: 2.5" RAP focuser with 2" and 1.25" reduction Adapter and M54x0.75 female thread
  • Corrected and flattner field: 32 mm with 100% correction
  • Working distance from the 2" receptacle: 135 mm

In the box:

  • TS 70 mm f/6.78 4-element ED
  • Transport case

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