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TS-OPTICS
Available within 5-14 days
This includes products that we do not keep in stock but are only available on request or have been announced by the manufacturer. For orders of these items, a deposit is required, proportional to the total value of your order. As soon as we receive your order, we will notify you by e-mail or telephone, for the exact delivery time and the amount of the deposit.
TS-Optics 70 mm f/5 Quadruplet Flatfield Apo with 3-Element FPL53 Objective
The TS-Optics 70 mm f/5 Flatfield Apo Refractor
The TS 70 mm quadruplet is an ideal traveling telescope for astrophotography. The apochromat offers a fully illuminated and corrected field of 45 mm diameter, so it is also suitable for cameras with full frame sensors. The FPL53 triplet objective corrects the chromatic aberration. The image is free of chromatic aberration on axis and in the field.
Camera connection to the apo
On the camera side, the apo offers an M48x0.75 external thread. From this thread you have between 40 mm and 70 mm distance to the focal plane, depending on the position of the draw tube. So you have enough space for all common astrocameras, SLR and system cameras. If you unscrew the M48 adapter, you will get a M54x0.75 female thread. You also gain 6.5 mm optical path. A 2" filter thread is integrated in this adapter.
We offer suitable T-rings for the M48 thread to connect DSLRs. If you want to use a camera with T2 connection, we also offer the transition adapter to T2.
Connection of 2" nebula filters or L-RGB filters
With the filter drawer TSFSLM48 you can integrate 2" nebula filters and L-RGB filters. The drawer requires only 18 mm optical path. So you will have no focus problems with astrocameras. For cameras with longer working distance (DSLR with adapter for example) we offer short camera mount adapters.
Visual observation through the TS 70 mm quadruplet
The quadruplet is a photo apo. The back focus is not sufficient for 2" or 1.25" star diagonals. The TSZPT2 T2 star diagonal prism allows observation with 1.25" eyepieces. For connection you need:
The use of full frame sensors (DSLR and CCD) becomes possible. The adjacent image of the M78 region and the Horsehead Nebula was taken by the 71 mm apo and proves its astrophotographic suitability. 350 mm focal length and the large, very well corrected field are the basis for impressive large field images with higher resolution than typical telephoto lens shots offer.
The newly designed 3" R&P focuser holds even very heavy CCD cameras without tilting. The drawer offers 360° rotation and direct M48 and M54x0.75 connection. This is also sufficient for cameras with larger formats.
The 4-element optical system works more effectively than a conventional combination of refractor and corrector. The optical elements are ideally matched to each other.
| Net Weight (g) | 3000 |
|---|---|
| Optical design | Apochromatic Refractor |
| Aperture (mm) | 70 |
| Focal length - F (mm) | 350 |
| Focal ratio (f/) | 5 |
Specifications:
In the box:
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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