Cloud Break Optics

Non-Rotating Helical Focuser for 50mm Finderscopes (F050HNR)

Non-Rotating Helical Focuser for 50mm Finderscopes (F050HNR) - Main image
$63.19 $89 In stock

Category: Finders

Description

Use the Stellarvue F050HNR to turn your F050M2 into a straight through finderscope! Simply unthread the right angle prism assembly from the main tube and replace it with the F050HNR. It features a 1.25" non-rotating helical focuser and includes a 10mm STE52 extension. Remember that when using the F050HNR on your finderscope your image will be inverted.

Since the F050HNR is the same focuser that is used on our F050G, the finderscope may now be used as a guide scope as well. The focuser has a standard 1.25" compression ring unit with an external M42 X .75 t-thread. So one can either use a guide camera's t-thread or a 1.25" nosepiece. 

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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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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Amelia ★★★★★

The helical action is precise and smooth, with zero play, which makes fine-tuning focus a breeze. I swapped out the right-angle prism on my finderscope in about five minutes and now have a much clearer straight-through view.

Amelia B. ★★★★★

The helical focuser threads on smoothly and eliminates any wobble I had with the stock prism unit. It makes focusing crisp stars much easier when I’m scanning.

Stella ★★★★★

Swapped out the right angle prism on my finderscope for this helical focuser, and the non-rotating design makes zeroing in on stars much easier. The threading fit perfectly and now I can actually use it as a straight-through scope without losing alignment.

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