Astronomy Specialist

DEMO SKYWATCHER EVOSTAR 100ED REFRACTOR

$1,275.00

Quantity
- +

 

Grab yourself a bargain with this demo SkyWatcher Evostar 100ED! This particular telescope has been tested under the sky. The optics are in perfect condition and the tube is as-new.

The Skywatcher Evostar 100ED is an apochromatic doublet refractor that offers high performance for visual observers and astrophotographers. The objective lens features an element similar in performance to FPL-53, extra-low dispersion glass (ED) that minimizes the chromatic aberration for the best colour correction. As a result, planets and the moon are sharp at high magnification and for astrophotography the images have a high contrast. 

The 2" Crayford focuser is solid, precise and backlash free. It operates at two speeds due to the 10:1 reduction mechanism for an extra fine focusing adjustment, which is paramount for astrophotography and high resolution observations.

The objective lens is fully multi coated with the Skywatcher proprietary "Metallic High-Transmission Coating" (MHC) for an effective anti-reflection result that approaches a transmission of 99.5%.

The aluminium tube is light-baffled and blackened to ensure high contrast absorbing stray light.

 

 

Optical design

Apochromatic ED doublet

Objective diameter

100 mm

Focal length

900 mm

Focal ratio

f/9

Resolving power

1.2 arc second

Stellar limit magnitude

12.0

Max. magnification

200 x

Light gathering power

204 times the human eye

Mount attachment

Tube rings on Vixen bar

Focuser

Crayford dual speed (10:1)

Tube weight

3 kg

Tube length

920 mm

Tube diameter

100 mm

SKU

U274-SWBDED100-OTA

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