Celestron EdgeHD 8" with Vixen bar...

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Celestron EdgeHD 8" with Vixen bar and ESATTO 2"


Celestron EdgeHD 8" telescope with Vixen bar is a compact aplanatic Schmidt-Cassegrain telescope 203mm f/10 that, thanks to the ESATTO 2" microfocuser, becomes excellent for any application! It's perfect also for remote control since the ESATTO allows you to focus even with the primary mirror locked to eliminate image shift.

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Composed of

ESATTO 2" robotic focuser
Celestron EdgeHD 800 with Vixen bar


Celestron EdgeHD 8" with Vixen bar and ESATTO 2": main features

Celestron EdgeHD 8" is an aplanatic astrograph telescope very light and compact. The high optical quality and very competitive price make it the ideal instrument for deep-sky and planetary visual use, and it's excellent in astrophotography. If you are looking for a versatile and easy to transport telescope, the EdgeHD is the right instrument for you. EdgeHD 8" is the more compact and affordable aplanatic Schmidt-Cassegrain telescope by Celestron, it's really portable. 3 years of warranty on the optical tube!

  • Celestron EdgeHD 8" with Vixen bar is a D:203mm F:2030mm f/10 aplanatic Schmidt-Cassegrain telescope
  • ESATTO is the most advanced and affordable robotic microfocuser


Celestron EdgeHD 8 with Vixen bar and ESATTO 2

ESATTO: the most advanced and affordable robotic microfocuser!

ESATTO is the new generation robotic focuser that you control by any Windows computer by connecting it to a USB port, or via WiFi by using ESATTO app on your smartphone or tablet with the Virtual HandPad! On the camera side, ESATTO has a M56x1 male thread to connect and manually rotate many cameras and accessories by adding the optional adapters with stop rings. The 2” version of the ESATTO 2" has a depth of 67mm, it has 15mm of focuser tube travel, a 5kg payload capacity and an incredible resolution of 0,04 micron per step (and this is why we call it ESATTO)! And you can also expand ESATTO features by adding the ARCO robotic camera rotator! EdgeHD telescopes are equipped with two primary mirror lock knobs: thanks to the ESATTO you can lock the primary mirror (this way you avoid any mirror shift) but you can always focus the telescope.


Long backfocus to connect cameras and astrophotography accessories.

Celestron EdgeHD 8" has a long backfocus, 133mm from the SC thread on the back of the telescope. ESATTO 2" is 67mm thick then you still have 66mm that are more than enough to connect cameras also with accessories for astrophotography (like off axis guiders or filter wheels). When using the Celestron 0.7x focal reducer (that is screwed directly onto the rear thread of the telescope before ESATTO), the backfocus is reduced to 105mm so, after ESATTO, you still have 38mm.

Celestron EdgeHD 8 with Vixen bar and ESATTO 2



The quality of EdgeHD aplanatic optics:

The Celestron challenge was to further improve their famous Schmidt-Cassegrain telescopes and the intention of creating a instrument without compromise, it brought the realization of these aplanatic optics, that return a stellar image comparable only to the famous RC or the CDK. The EdgeHD optics in fact guarantee perfect images, both in color level and in big 42mm circle field correction. Maintaining the same high quality standards, Celestron has succeeded in creating a new generation telescopes at a very affordable price. The construction of these optics is done by the combination of the best features of CDK and SCT. EdgeHD in fact are made with primary and secondary spherical mirrors. But, unlike the Schmidt-Cassegrain telescopes, in the optical path two lenses that correct aberrations are installed, in addition the stars appear perfectly point, without coma or field curvature.

Celestron EdgeHD 8 with Vixen bar and ESATTO 2



The EdgeHD for visual and astrophotography

The high performance of this instrument can be noticed immediately during an observation, thanks not only to the optical design, but also to the great optical correction that offer results hat only few instruments can provide. Even with wide-field eyepieces, stars appear perfectly pinpoint from the center to the edges of the field of view. The resolution capabilities of this instrument is amazing, you can perform very high quality observations or imaging of double stars or planets. More, thanks to the large diameter, you can observe and take picture of many deep-sky objects, like galaxies, nebulae or star clusters. Thanks to a big 42mm diameter flat field, this telescope is ideal in astrophotography even with large sensor camera. Celestron also created dedicated accessories in order to be able to use this instrument with the maximum performances, such as the focal reducers and photographic adapters made specifically for the EdgeHD. In addition, these optics are compatible with the Hyperstar system, which leads the focal instrument from f/10 to f/2, much brighter and greatly reducing the exposure times. Photographically they are comparable only to high-level instruments with much higher costs.


Celestron EdgeHD 8 with Vixen bar and ESATTO 2



Celestron EdgeHD 8" with Vixen bar and ESATTO 2": scope of delivery

- Celestron EdgeHD 8" optical tube

- ESATTO 2" robotic microfocuser

- Adapter ESATTO 2" for telescopes with SC thread

- 50,8mm and 31,8mm visual back

- Plossl 40mm 51x eyepiece (diameter 31,8mm)

- Mirror diagonal 90° (diameter 31,8mm)

- View-finder 9x50

- Dovetail bar Vixen type

Hard/soft case
Support rings
Diameter (mm)
Optical Tube
Focal Length (mm)
Primario e secondario sferici, con lastra correttrice e gruppo spianatore
7,0 kg
Eyepiece holder
Focal Ratio
Optical Design
Aplanatic Schmidt-Cassegrain
Field flattener/corrector
Incluso e non rimovibile


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