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SkyWatcher EVOSTAR 100 ED...

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SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2"


SkyWatcher EVOSTAR 100 ED is a great 100mm f/9 apochromatic refractor that, thanks to the ESATTO 2" microfocuser and PLUS rings, is perfect also for the most demanding astrophotography with heavy cameras and accessories.

Composed of

ESATTO 2" robotic focuser
SkyWatcher EVOSTAR 100 ED apochromatic refractor


SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2": main features

The SkyWatcher EVOSTAR 100 ED telescope is a 100mm f/9 apochromatic refractor suited to high magnification observation of planets, Moon and double stars. The objective is a doublet apochromatic with FPL-53 glass that produces no false color images (very well correct chromatic aberration): the result is a contrasted picture and rich in details. The SkyWatcher EVOSTAR 100 ED telescope it's still lightweight and therefore it can also be used on HEQ5 type mounts. It comes standard with a a lot of accessories: ESATTO robotic microfocuser, LET 28mm eyepiece (21x, 50.8mm in diameter), 90° dielectric 50,8mm mirror diagonal, 9x50 finder, PLUS support rings and aluminum transport case. 3 years of warranty on the optical tube!

  • SkyWatcher EVOSTAR 100 ED telescope is a D:100mm F:900mm f/9 apochromatic refractor
  • ESATTO is the most advanced and affordable robotic microfocuser
  • PLUS rings offer a better stability, avoid flexures and let you connect dovetail bars, guide rings, clamps and the EAGLE


SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2



ESATTO: the most advanced and affordable robotic microfocuser!

SkyWatcher EVOSTAR 100 ED telescope has a Crayford focuser that doesn't offer a high load capacity so it is not recommended for long exposure astrophotography with heavy cameras or accessories. This special version of the Skywatcher EVOSTAR 100 ED 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! 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)! Based on the camera and accessories you want to connect, you may need extenders to reach the focus with your camera. And you can also expand ESATTO features by adding the ARCO robotic camera rotator!



PLUS: the best support rings for telescopes

In this kit we replace the standard rings with our PLUS rings which offer greater stability and compatibility with plates, guide rings, dovetail clamps and EAGLE to offer you maximum freedom in customizing your telescope. Indeed, all the PLUS elements have threaded holes, holes and slots suitable for connecting elements, always with maximum rigidity and comfort. Each component of the PLUS system is made of aluminum blocks that are high precision CNC machined. The aluminum is then sandblasted to achieve a very smooth surface finish and is anodized (hard anodizing) to increase the hardness of the material and protect it from oxidation.



SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2
SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2" and the following optional accessories: Losmandy style 240mm PLUS dovetail bar (below the tube) and EAGLE with guide scope in parallel (above the telescope).



SkyWatcher EVOSTAR 100 ED perfect also for deep-sky astrophotography

The optional 0,85x reducer/flattener enables you to convert it into a telescope to photograph deep-sky objects even with large sensor camera (like DSLR). In fact it decreases telescope focal length at 765mm and focal ratio changes from f9 to f7.65. This makes it easier to record the weak details of galaxies, nebulae and star clusters. By adding EAGLE to the SkyWatcher EVOSTAR 100 ED 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 SkyWatcher EVOSTAR 100 ED into the most advanced robotic telescope.



SkyWatcher EVOSTAR 100 ED apochromatic refractor with ESATTO 2" dotazione:

- Apochromatic refractor OTA D:100mm F:900mm f/9

- Steel tube

- ESATTO robotic microfocuser

- PLUS Support rings

- 90° 50,8mm dielectric mirror diagonal

- LET 28mm eyepiece

- 9x50 finder with support

Hard/soft case
Valigia rigida
Support rings
Diameter (mm)
Optical Tube
Focal Length (mm)
Doppietto FPL53
Eyepiece holder
Focal Ratio
Optical Design
Field flattener/corrector
Non incluso (opzionale)
Tube diameter


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