Sky-Watcher EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube
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Sky-Watcher EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube

SKU: SKWS11120

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Questions & Answers

CHRISTOPHER M : What do I need to attach this scope to a Nikon Z mount mirriorless camera?
Shopper : Does anyone make an adapter that would allow me to mount this telescope on my heavy duty camera tripod for casual terrestrial and lunar viewing?DAVID W C : You should be able to find a plate for your tripod that will align with some of the holes on the telescope mount. For example I bought a longer plate for my gitzo tripod that was a suitable intermediary. This was ok for level daytime scanning. However I found it almost impossible for sky useage when I needed any angle or tilt. This is where the balance weights on a celestial tripod are so important. I finally bought a Celestron Omni XLT CG-4 which suits the telescope very well.Jeffrey M : Trust me, nothing short of a Celestron CG-4 mount will do. The tube is to long to achieve a good balance on even a heavy duty photo tripod.
Shopper : Is the optical quality really good as far as showing very little to none of false color?KAREN T : I'm not a very experienced astronomer, but in my opinion the quality is good showing very little to none of false color. Its a good telescope.DAVID W C : Limited celestial use but tested on terrestrial objects also. Would say that true color is very accurate. I'm using high quality Televue Eyepieces with the telescope. Noted that reviewing different eyepieces that users report their own characteristics often with different subtle "tints." Chose this refractor because of the ED lens and its clarity and lack of distortion which has proven accurate.CLIFFORD B : There is some false color on Vega (bright objects) but to me its negligible. Are you using the scope for astrophotography? I cannot comment but assume there will be some minor false color. For visual? I think this scope is great for visual. I owned a Takahashi TSA-102 in the past and it was great but I must say for the money this scope is a great deal. Most of the false color I see is in the defocused star images....and even there it is only minor. I've been impressed with the star tests I have performed with this scope thus far.

Reviews about this item

Review Summary

2025-04-23T11:09:13

Rated 4 out of 5

Good scope

very good optics and overall design, for imaging or guiding.

Ronald P.

2024-01-29T15:49:55

Rated 5 out of 5

A great OTA

This is a great little starter OTA for astrophotography and seeing as well. You'll need the field flattener for astrophotography, but well worth it.

Gloria E.

2023-08-30T10:09:08

Rated 2 out of 5

Needs Attachments To Use

Scope has long focus only attainable with extension tubes (not provided). Can't plop in an eyepiece or attach camera without accesories. Has no instructions on how to use. Customer service advice: "It's only an Optical Tube Assembly." I can't comment on optics. Scope is nicely made and looks great!.

GARY S.

2023-07-05T11:38:42

Rated 5 out of 5

Sky-Watcher EvoStar 100ED / ProED 100 Refractor Manual Location

The manual for this item can easily be found on the manufacturer's website. skywatcher dot com/ download / manual/

Charles B.

2021-04-22T17:10:07

Rated 5 out of 5

Sky Watcher evostar 120 ED

I love the quality build on the scope, unfortunately I still haven?t used it outside yet. But it looks awesome

DAVID F.

2018-08-28T09:29:47

Rated 5 out of 5

Great wide field refractor

The Skywatcher EvoStar 80Ed is a great scope for the money. Views are excellent using the supplied 20mm and 5mm eyepieces. I was unsure how the scope would respond using the 5mm eyepiece, and was pleasantly surprised that the views with this ocular were sharp and crisp. Criticisms of doublets are based on the tendency of these scopes to provide green or purple fringing around the edges of bright objects. With the 20mm eyepiece, I was able to discern minor green fringing around the waxing moon (about 3/4 full), but it was barely noticeable and did not detract from the views. I mounted the scope on my Celestron AVX mount, which proved to be very steady. On my first night with the scope, I viewed several galaxies, double stars, globular and open clusters, as well as the Moon, Jupiter, Mars, Venus and Saturn. All the views were tack sharp and pleasant. All together, a great scope.

PETER P.

2016-10-19T11:35:31

Rated 5 out of 5

Awesome telescope

Excellent telescope relation cost/benefit. All accesories included. Its like "plug&play". I´m an amateur astrophotographer. I only use it for astrophotography, not for terrestrial view. Excellent and sharp images. First time to use and boy an APO ED. I´m sure you are going to enjoy it. Highly recommended. Adorama´s custermer service: A++.

CARLOS A.

2013-11-25T19:00:00

Rated 1 out of 5

No Manual Included

The scope looked good. Unfortunately, the manual was missing. I searched on line for one but I was unsuccessfully.

Not H.

2013-05-20T21:00:00

Rated 5 out of 5

Beautiful Views

I'm a bit of a scope junkie and have owned many. Tend to buy scopes, use them for a while and then give them away. This scope is a keeper! Great wide field views of brighter objects. Optics are fantastic. Mounted scope on Celestron CG-4 Equatorial Tripod. The Right Ascension knob at some stiction when I first used the scope but a little spray of silicone lubricant fixed that. I also added a Tel-Rad for easier target pointing. A very capable APO Refractor that will provide very satisfying views with the Wow Factor!

Jeffrey M.

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Sky-Watcher EvoStar Specifications

  • Optical Design

    ED Refractor

  • Aperture (Diameter)

    100mm

  • Focal Length

    900mm

  • F-Ratio

    f/9

  • Highest Practical Power

    200x

  • Faintest Stellar Magnitude

    12.7

  • Resolving Power

    1.15

  • Finderscope

    9x50

  • Focuser Diameter

    2"

  • Diagonal

    90½ Star Diagonal

  • Eyepiece(s)

    1.25" LET 20 and 5

  • Piggyback Bracket

    YES

  • Tube Weight

    3 kg

  • Tube Dimension (dia. x length)

    10 cm x 92cm

  • Warranty

    Sky-Watcher warranty

  • UPC Code

    050234111201

1 Accessories for Sky-Watcher EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube

  • All Accessories (1)
  • Adapters & Mounts (1)
Celestron CG-4 German Equatorial Mount and Tripod
Celestron CG-4 German Equatorial Mount and Tripod
$399.95
Recommended

About Sky-Watcher EvoStar

FEATURED REVIEWS

Beautiful Views

By Jeffrey M.

I'm a bit of a scope junkie and have owned many. Tend to buy scopes, use them for a while and then give them away. This scope is a keeper! Great wide field views of brighter objects. Optics are fantastic. Mounted scope on Celestron CG-4 Equatorial Tripod. The Right Ascension knob at some stiction when I first used the scope but a little spray of silicone lubricant fixed that. I also added a Tel-Rad for easier target pointing. A very capable APO Refractor that will provide very satisfying...

View full Review

Great wide field refractor

By PETER P.

The Skywatcher EvoStar 80Ed is a great scope for the money. Views are excellent using the supplied 20mm and 5mm eyepieces. I was unsure how the scope would respond using the 5mm eyepiece, and was pleasantly surprised that the views with this ocular were sharp and crisp. Criticisms of doublets are based on the tendency of these scopes to provide green or purple fringing around the edges of bright objects. With the 20mm eyepiece, I was able to discern minor green fringing around the waxin...

View full Review

Take your stargazing experience to the next level with the EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube. This top-tier telescope, crafted by Sky-Watcher, a renowned leader in the design and manufacture of ED-APO systems, offers unparalleled optical and mechanical quality.

The EvoStar 100ED APO Refractor is part of Sky-Watcher's extensive line of ED-APOCHROMATIC refractors, known for their exceptional performance and high-quality fabrication materials. This telescope is designed to provide the amateur astronomer with peak performance and an unforgettable experience every time it's used.

When observing with the Sky-Watcher EvoStar 100ED 100mm Refractor, you'll be amazed by the razor-sharp detail of lunar landscapes, the swirling equatorial bands of Jupiter, and the stunning surface phenomenon of Saturn. This telescope also excels in resolving double stars and viewing compact globular star clusters, offering a superior image quality compared to larger reflectors.

As an astrograph, the EvoStar 100ED APO delivers crisp, high-fidelity imaging of planetary, lunar, and aperture-appropriate deep-space phenomena. Its design virtually eliminates residual chromatic aberration, commonly found in 2-element achromatic lens designs. This is achieved by using the finest extra-low dispersion (ED) glass available, FPL-53, resulting in the best color correction for an ED doublet lens.

Selected models of the ED-APO refractors also benefit from the inclusion of Schott glass for the positive front Crown element in the objective. Known as the world leader in glass used for precision optical lens systems, Schott glass ensures the highest quality in your viewing or photography experience.

Every lens in the EvoStar 100ED APO Refractor is individually inspected for purity and absence of striae and other image-degrading imperfections. Each air-to-glass lens surface is treated with Sky-Watcher's proprietary "Metallic High-Transmission Coatings" (MHC), ensuring optimum light throughput.

The telescope features a precision 2" Crayford-style focuser, offering fine and ultra-fine focusing adjustments. The optical tube is made of aluminum, powder-coated in reflective gloss black with gold fleck accent, while the front and back cells are cast-aluminum painted white or black.

The Sky-Watcher APO optical tubes come with attachment hardware, allowing them to be securely fastened to compatible mounts. The quick-release tube rings provided with the EvoStar 100ED APO models are cast-aluminum, painted white.

In summary, the EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube is the ultimate choice for those seeking pristine, near textbook-perfect astronomical imaging. Experience the universe like never before with this exceptional piece of advanced instrumentation.

Sky-Watcher EvoStar Features

  • Virtually Eliminates Residual Chromatic Aberration
  • Pride and Perfection in Optical Manufacturing
  • Metallic High-Transmission Lens Coatings: Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher "Metallic High-Transmission Coatings" (MHC) are the finest photon anti-rejection coatings in their class
  • Light-Baffled Optical Systems: The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane
  • Precision 2" Crayford-style Focuser is Standard: Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2" Crayford-style rack & pinion focuser-assembly with 1.25 adaptor. This focuser operates at 2 speeds for fine and ultra-fine focusing adjustments
  • Tube Materials: The optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent
  • Telescope Tube Attachment Hardware: The Sky-Watcher APO optical tubes come with attachment hardware that allows them to be securely fastened to the SW EQ5P mount. The quick-release tube rings provided with SW ED-APO models 80ED 100ED and 120ED are cast-aluminum, painted white

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Key Features

  • High-quality ED-APO refractor telescope designed for peak performance and exceptional viewing
  • Utilizes the finest extra-low dispersion (ED) glass, FPL-53, for superior color correction
  • Precision 2" Crayford-style focuser for fine and ultra-fine focusing adjustments
  • Durable aluminum optical tube with a reflective gloss black and gold fleck finish

What's in the box:

  • EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube
  • RA 8x50mm Viewfinder with Bracket
  • 2 " Dilectric Diagonal & Two 1.25 " LE (Long Eye Relief) Eyepieces (LE20mm and LE5mm)
  • 1.25 " Focuser Adaptor
  • Tube Ring Attachment Hardware
  • Foam Lined Aluminum Carry/ Storage Case
  • Sky-Watcher Warranty

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