TS Optics 70mm f/6.78 ED 4 Element Flat Field Quadruplet Apo Refractor Telescope
The 70mm Quad Apo is a good SD lens refractor for astrophotography with a flat corrected field of view.
♦ 70mm aperture / 474mm focal length / f/6.78 focal ratio
♦ Quad 4-element design with a 32mm diameter fully corrected image field – ideal for cameras with APS-C sensors
♦ The 2 element corrector is fixed on the tube.
♦ Good image through SD apo lenses with FPL51 and special lanthanum lenses
♦ Rugged 2.5" rack and pinion focuser (70mm travel) with M54x0.75 screw adaptation and reduction to 2" and 1.25"
♦ No battle of adapters: just focus and it will automatically be at the correct distance.
♦ Wide 135mm focus distance from 2" receptacle onwards
♦ Search shoe, CNC tube rings, EQ5 style dovetail bar and high-quality carrying case included in delivery
€1,821.60
(VAT incl.)
Reference:
TSED70Q
TS-Optics 70mm 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 on-axis and field corrector. Furthermore, the SD apo also offers decent visual performance. Magnifications up to approx. 150x are well handled by the lens, the chromatic error is significantly reduced. We recommend the telescope to all photographers looking for a well-corrected, inexpensive, portable refractor for photography and observation. Since the corrector is integrated into the tube, the expensive battle of the adapter is no longer necessary. Simply focus and you will automatically be at the optimum distance.
The connection of accessories:
The TSED70Q has a very comfortable working distance of 135mm from the 2" socket, so it can use mirrors and 2" star diagonal eyepieces and can focus with ease.
To connect a camera we recommend the TSFA240 adapter, this adapter is 40mm long and has 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 a female thread M54x0.75 for threaded adapters.
Especificaciones:
| Aperture: | 70 mm |
| Focal length: | 474 mm |
| Focal ratio: | f/6.78 |
| 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 |
| Tube weight incl. accessories: | 2.8 kg |
| Tube length: | 370 mm min. |
| Tube diameter: | 82 mm |
| Dew shield diameter: | 93 mm |
| Outer dimensions transport case: | 45 x 23 x 19.5 cm (LxWxH) |
English GB
Español