Sky-Watcher Evostar 100ED

Name: Sky-Watcher Evostar 100ED
Brand: Sky-Watcher

Sky-Watcher

Sky-Watcher Evostar 100ED is a 100 mm ED doublet APO refractor for general deep-sky imaging and visual observing.

telescope midrange

Best Current Offer

High Point Scientific

In stock

$1,192.25

Other retailers

Astronomics (In stock)
$1,255.00
Cloud Break Optics (In stock)
$1,255.00
Starizona (In stock)
$129,900.00

Specifications

Optics

Optical design: ED doublet APO refractor
Aperture: 100 mm
Focal length: 900 mm
Focal ratio: f/9
Dawes limit: 1.16"
Glass / elements: Schott glass and FPL-53 ED element

Specifications

Focuser: 2 inch dual-speed Crayford-style
Weight: 6.6 lb (2.99 kg)

Imaging

Camera format: APS-C / Micro 4/3 with matching flattener
Full-frame coverage: No
Back focus: Requires field flattener/reducer spacing for imaging

Astrophotography Fit

Best for general deep-sky imaging and visual observing when the mount, camera format, and correction hardware are chosen as one system.

Sky-Watcher Evostar 100ED sits in the telescope slot for general deep-sky imaging and visual observing. The useful headline specs are aperture 100 mm, focal length 900 mm, f/9.

Camera coverage: APS-C / Micro 4/3 with matching flattener. Back focus: Requires field flattener/reducer spacing for imaging.

Refractors keep the field routine calmer: no regular collimation, predictable cooldown, and a clean path to autofocus and filtered imaging. The tradeoff is aperture and reach.

Best paired with

Corrected field flattener or reducer when the design requires one
Cooled APS-C or smaller astro cameras matched to the image circle
Autofocus, guide scope or OAG, and a mount with comfortable payload margin

Not recommended for

Large full-frame sensors unless the corrected field supports them
Very small travel mounts near their realistic imaging payload limit
Buyers expecting one telescope to be ideal for every target size

Where To Buy

Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.

Retailer	Price	Availability	View Offer
High Point Scientific High Point Scientific	$1,192.25	In stock Updated 11/4/2026	View Offer - $1,192.25
Astronomics Astronomics	$1,255.00	In stock Updated 11/4/2026	View Offer - $1,255.00
Cloud Break Optics Cloud Break Optics	$1,255.00	In stock Updated 11/4/2026	View Offer - $1,255.00
Starizona Starizona	$129,900.00	In stock Updated 11/4/2026	View Offer - $129,900.00

Price History

Chronological retailer pricing with out-of-stock points shown at reduced opacity.

Astronomics Cloud Break Optics High Point Scientific Starizona