Περιγραφή
The ZWO FF130 APO offers superb quality optics for high-end astrophotography. This 130mm scope is capable of producing amazing images of deep-sky objects! It is also a great choice for visual astronomy and is a great choice for viewing planets with high-power eyepieces.
The optical design of the scope offers excellent control of chromatic and other aberrations, producing razor sharp and high-contrast images. The scope comes with M86, M68, M54 and M48 adapters. The M48 adapter has a 2″ filter-thread so you can use filters without the need for a separate adapter.
The four element APO lens design produces high-contrast images free of aberrations. This scope doesn’t need a field flattener at all, producing a whopping 60mm corrected image-circle straight out-of-the box.
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-3.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-4.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-5.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-6.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-7_2.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-8.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-9.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-9_1.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-10.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-11.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-12.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-13.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-15.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-16.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-17.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-spotdiagramm-1000.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
![This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]](https://www.teleskop-express.it/img/cms/ZWO-FF130-APO-zeichnung-1000.jpg "This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat. [EN]")
ZWO 130 mm f/7 APO Astrograph
The FF130 is a flatfield astrograph that joins the series that also includes the FF65, FF80 and FF107 models.
Optical Design
Instead of buying additional flatteners, calculating the backfocus of the flattener, or making a tedious connection to set the correct distance, astrophotographers can simply equip it with all sorts of photographic accessories, hold the object in focus, and then the entire optical system is perfectly set for imaging.
High quality glass
The FF130 has a focal ratio of 1:7 and a focal length of 740 mm. The FF130 is a quadruplet design with two ED glasses, which provides excellent control of chromatic and other aberrations. With its self-stemming design, the FF130 offers great advantages in astronomical imaging. It offers more than full-frame image circle and has a fine spot diagram with only tiny distortions of peripheral stars.
Practical Details
The FF130 comes with a retractable dew cap, a high-quality CNC-machined and painted tube, and decoratively designed parts. The OTA weighs 10.5 kg, and the total package with tube clamps, etc. weighs 12.5 kg. The sturdy 3.4″ focuser comes with a 360° rotator with scales and a finder shoe. M86, M68, M54 and M48 camera adapters are also included, and the M48 adapter has a female M48 thread for installing 2″ filters.
Backfocus is always measured with the extension tube fully retracted:
♦ 116 mm from M48x0.75 male thread
♦ 136 mm as of M54x0.75 male thread
♦ 156 mm as of M68x1 male thread
♦ 186 mm as of M86x1 male thread
