Cloud Break Optics

Zenithstar 81 WIFD

Zenithstar 81 WIFD - Main image
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$719.28 $999 In stock

Category: Refractor Telescope

Description

Explore the universe with the William Optics ZenithStar 81 WIFD, a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras.

Available in vibrant red or elegant gold, the ZenithStar 81 WIFD boasts a compact and durable build. Enhance your viewing with optional accessories like the Flat6aIII, a 0.8x reducer for broader celestial views, and the 50mm Uniguider for improved tracking accuracy during long exposures.

With its refined internal focuser, this telescope provides smooth, precise adjustments for consistently sharp images. Whether capturing distant galaxies or observing planetary details, the ZenithStar 81 WIFD is an excellent choice for serious astronomers.

Specifications:

  • Focal Length: 559mm
  • Diameter: 81mm
  • Aperture: f/6.9
  • Focuser: WIFD (WO Internal Focus Design, compatible with EAF)
  • Image Circle: >Full Frame
  • Retracted Length: 526mm
  • Extended Length: 607mm
  • Dew Shield Circumference: 382mm
  • Dew Shield Diameter: Φ121mm
  • Weight: 7.82lbs / 3.545kg (OTA only), 10.05lbs / 4.560kg (OTA with ring, dovetail and saddle)
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Penelope Z. ★★★★★

The internal focus design is a game-changer—no more image shift when I dial in sharpness on Jupiter. Paired with the 81mm aperture, it’s been fantastic for both lunar detail and splitting double stars.

Hazel ★★★★★

I was blown away by how crisp the views were on my first night out—the internal focus design let me dial in Jupiter’s bands without any image shift. Setup was a breeze, too; the dual-speed focuser is buttery smooth.

Amelia A. ★★★★★

The internal focus design makes fine-tuning stars incredibly smooth, and I love how compact it stays on my mount. Spent hours just scanning the Orion Nebula last night.

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