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Celestron C11-XLT with dovetail...

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Celestron C11-XLT with dovetail Losmandy type and ESATTO 2"


Celestron C11-XLT with dovetail Losmandy type is a 280mm f/10 Schmidt-Cassegrain telescope and, thanks to the ESATTO 2" robotic microfocuser, there is no more image shift and you can focus the telescope with extreme precision, even remotely.

Composed of

ESATTO 2" robotic focuser
Celestron C11-XLT with dovetail Losmandy type


Celestron C11-XLT: main features

The Celestron C11-XLT is a Schmidt-Cassegrain telescope, 280mm diameter and 2800mm focal length, its large aperture produces bright images making it suitable for observation of even the faintest objects, also thanks to the Starbright XLT coatings. The large diameter, combined with the high optical quality, it also allows a large magnification capability, making the C11 a great telescope also for planetary observation and photography. In order to take advantage of this telescope, you need a mount with high load capacity, at least EQ6 type. For photography of deep-sky objects we recommend the optional focal reducer to reduce the focal ratio to f/6.3. 3 years of warranty on the optical tube!

  • Celestron C11-XLT with dovetail Losmandy is a D:280mm F:2800mm f/10 Schmidt-Cassegrain telescope
  • ESATTO is the most advanced and affordable robotic microfocuser


Celestron C11-XLT with dovetail Losmandy type and ESATTO 2



ESATTO: the most advanced and affordable robotic microfocuser!

Celestron C11-XLT telescope has an internal focuser without micrometric focus and that generates image shift, the movement of the image during focusing. This special version of the Celestron C11-XLT adds ESATTO 2", 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! 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!

Celestron C11-XLT with dovetail Losmandy type and ESATTO 2
Celestron C11-XLT with dovetail Losmandy type and ESATTO 2" and the following optional accessories: Losmandy style 495mm PLUS dovetail bar (above the tube), EAGLE installed in parallel (above the telescope).



The Celestron C11-XLT for deep-sky imaging

This special version of the Celestron C11 with ESATTO 2" is a very good telescope for astrophotography. Thanks to the optional focal reducer, its focal length can be reduced to f/6.3 making it very good also for deep-sky astrophotography. This optic it's also Fastar compatible, which allows the user to further reduce the focal length to f/2 (for photographic use only), so you can take pictures with very short exposure times, and in some cases autoguiding is not required. By adding EAGLE to the Celestron C11 telescope you can remotely control and power any camera, mount and accessory for astrophotography, using any of the most advanced astronomical software for Windows (you can install in the EAGLE the software you prefer) and converting your Celestron C11 into the most advanced robotic telescope.



Celestron C11-XLT with dovetail Losmandy type and ESATTO 2": scope of delivery

- Celestron C11-XLT optical tube

- ESATTO 2" robotic microfocuser

- Adapter ESATTO 2" for telescopes with large 3.3" SC thread

- Eyepiece Plossl 40mm 70x (31,8mm barrel)

- 90° 31,8mm mirror diagonal

- Finderscope 9x50 with support

- Dovetail plate Losmandy type

Hard/soft case
Support rings
Diameter (mm)
Optical Tube
Focal Length (mm)
Primario e secondario sferici, con lastra correttrice
Eyepiece holder
Focal Ratio
Optical Design
Field flattener/corrector
Non incluso (opzionale)
Tube diameter


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