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  3. WILLIAM OPTICS 61II

WILLIAM OPTICS 61II Zenithstar Doublet Refracting Telescope

61ii William Optics Zenithstar Doublet Refracting Telescope Bundle

( Brand: William Optics ), ( Manufacturer Part Number: 61II ), ( Model: WILLIAM OPTICS ZENITHSTAR 61II ), ( Type: Refractor ), ( Mount Type: Dovetail ), ( Maximum Magnification: More Than 100x ), ( Features: Lens Cover ), ( Aperture: 61mm )

Review WILLIAM OPTICS Zenithstar Doublet Refracting Telescope Bundle

Introducing the William Optics 61II ZenithStar Doublet Refracting Telescope, a marvel of modern optical technology that promises an unforgettable astronomical experience. This telescope, with its sleek and compact design, is an ideal choice for both veteran stargazers and novice observers.

The heart of this instrument is its exquisitely crafted 61mm f/7.5 triplet apochromatic objective lens. This lens, made up of three elements, effectively eliminates chromatic aberration, delivering razor-sharp images with remarkable color correction. The doublet design of the lens further ensures that the telescope is lightweight and portable, making it an excellent companion for observing sessions in the field.

The telescope boasts a focal length of 464mm and a focal ratio of f/7.5, providing an impressive field of view of approximately 1.1 degrees. This expansive field of view makes it an excellent choice for observing open star clusters, galaxies, and other deep-sky objects. The telescope's high contrast and sharp images make it an excellent tool for planetary observation as well.

The William Optics 61II ZenithStar comes with a robust and rigid 2-inch Crayford-style focuser that offers 1:10 fine focus ratio and a generous 360-degree rotation of the focus knob. This focuser is designed to provide precise and smooth focus, enabling you to capture the finest details in your observations.

The telescope's tube length is a manageable 365mm, making it a highly portable instrument. It is also equipped with a dew shield to protect the objective lens from condensation, ensuring that your observations remain uninterrupted.

The William Optics 61II ZenithStar comes with a Vixen-style dovetail mounting plate, which allows you to easily attach it to a wide range of equatorial mounts or other mounting systems. The telescope also includes a 2-inch diagonal and a 25mm eyepiece, enabling you to begin your astronomical journey right out of the box.

In summary, the William Optics 61II ZenithStar Doublet Refracting Telescope is a versatile and high-performance instrument that delivers stunningly sharp and color-corrected images. Its compact design, coupled with its advanced optical components, makes it a must-have for any serious astronomer or keen observer.

The William Optics 61mm ZenithStar Doublet Refracting Telescope is a popular choice among astronomers and astrophotographers due to its high-quality optics and compact design. In this analysis, we will discuss the pros and cons of buying this telescope to help you make an informed decision.

Pros:

1. High-quality optics: The ZenithStar Doublet Refracting Telescope features a high-quality doublet lens system that provides excellent image clarity, contrast, and color fidelity.

2. Compact and portable: With a short focal length of 480mm and a lightweight design, this telescope is easy to transport and set up, making it an excellent choice for observing from different locations.

3. Wide field of view: The 61mm objective lens provides a wide field of view, enabling you to observe large areas of the night sky with ease.

4. Versatile: This telescope can be used for various observing and imaging applications, including visual observing, astrophotography, and planetary imaging.

5. High magnification capability: With a focal ratio of f/7.9, the ZenithStar Doublet Refracting Telescope can achieve high magnifications, making it suitable for detailed observing and imaging of planets, stars, and other celestial objects.

Cons:

1. Expensive: The William Optics ZenithStar Doublet Refracting Telescope is a premium instrument, and its price tag may be a barrier for some potential buyers.

2. Requires a sturdy mount: Due to its high magnification capability and short focal length, this telescope requires a sturdy mount to provide stable images and accurate tracking.

3. Limited deep-sky observing: The short focal length of this telescope limits its ability to observe deep-sky objects, such as galaxies and nebulae, as it may not provide enough light gathering capability.

4. Sensitive to atmospheric conditions: Refracting telescopes, in general, are more sensitive to atmospheric conditions than reflecting telescopes, which may result in image distortion and reduced image quality.

Conclusion:

The William Optics 61mm ZenithStar Doublet Refracting Telescope is an excellent choice for astronomers and astrophotographers who require a high-quality, compact, and versatile instrument for observing and imaging celestial objects. Its high-quality optics, wide field of view, and high magnification capability make it a popular choice among advanced users. However, its expensive price tag, limited deep-sky observing ability, and requirement for a sturdy mount are potential drawbacks. Ultimately, if you are looking for a premium, portable, and versatile telescope for observing and imaging planets, stars, and other bright celestial objects, the William Optics 61mm ZenithStar Doublet Refracting Telescope is an excellent investment.

Recommendation:

If you are a beginner astronomer or astrophotographer and are looking for a more affordable and versatile telescope, you may want to consider a reflecting telescope, such as the Orion SkyQuest XT8 Classic Dobsonian Telescope. However, if you are an advanced user with a larger budget and require a high-quality, portable, and versatile telescope for observing and imaging celestial objects, the William Optics 61mm ZenithStar Doublet Refracting Telescope is an excellent choice.

Details:

Optical Design Doublet Refractor. Patented Bating Mask Cap Design. CNC Made Mounting Ring. This bundle comes with the ZenithStar 61II Refractor along Z61 Adjustable flattened, a 2 Orion Moon Filter, and Nikon camera attachment.

The Focused is 50.8mm 2-inch, rack and pinion, with 10:1 dual-speed micro focused a 75 travel length . Williams Optics ZenithStar 61II Special Features: The full-frame sensor size is approximately 36X24. A 41mm diameter image circle. CAT Handle Bar.

A rota table L mounting bracket. Soft Carry Case.

specifications telescuper:

  • brand: William Optics
  • mpn: 61ii
  • model: William Optics Zenithstar 61ii
  • type: Refractor
  • mount type: Dovetail
  • maximum magnification: More Than 100x
  • features: Lens Cover
  • aperture: 61mm

payments telescuper:

  • credit card: Mastercard
  • wallet: Apple-pay
  • other

shipping telescuper:

  • carrier: USPS
  • class: Standard
  • type: Fixed
  • cost: $20.00
  • service: USPS Ground Advantage
  • transit: 5-11 Days

seller telescuper:

  • rating: 100.0%
  • city: Brazil, Indiana
  • # reviews: 4

general telescuper:

  • Cameras Photo > Binoculars Telescopes > Telescopes
  • condition: Used

offer telescuper:

  • availability: In Stock
  • started: April 27, 2026
  • options: Ship-to-home
  • sold: 0
  • quantity: 1

returns telescuper:

  • policy: No Returns
type: refractor, mount type: dovetail, maximum magnification: more than 100x, features: lens cover, aperture: 61mm,
category: camera & photo > cameras photo > binoculars telescopes > telescopes, sku: 2110536337180871,

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