50mm Guiding Scope (M-G50WIII)

$99.16 ~~$148~~ In stock

Description

All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits perfectly on your William Optics and other telescopes.
The tube diameter is 54mm and dew shiled of 58mm.

Convenient
• Guiding scope gives sharpest image and straight through viewing with an inverted image.
• High-quality 50 mm objective.
• 5.7 deg field of view.

Nice Fit & Finish
• White Powder painted with 1.25" color RotoLock.

•Perfectly suited for William Optics or other refractor.

•Guide Scope Weight: 460g

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (5.0 / 5 · 5 reviews)

Samuel Y. ★★★★★ Oct 21, 2026

The RotoLock mechanism makes attaching and swapping this scope incredibly quick and secure, a huge upgrade from thumbscrews. First light showed crisp, tight stars across the entire field with no fuss. Really solid build quality for the price.

Ellie ★★★★★ Oct 20, 2026

The fully multi-coated optics on this 50mm scope give me noticeably sharper guide stars than my old finder, even at f/4. The 54mm tube diameter feels solid and the RotoLock grips securely without any wobble. It's already made my polar alignment sessions way less fiddly.

Natalie J. ★★★★★ Oct 19, 2026

The RotoLock adjustment ring makes dialing in focus incredibly quick and precise, a huge upgrade from my old set screws. I had it aligned and guiding within minutes of mounting it on my scope.