Alstar Stereo Binocular Viewer - Bundle with - 0.5X Reducer

★★★★☆ 4.0 129 reviews

$192.50
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$192.50
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Free shipping Free 30-day returns

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Product details

Management number 212379497 Release Date 2026/04/06 List Price $77.00 Model Number 212379497
Category
  • Intended for use with with longer focal ratio telescopes and eyepieces of narrow to moderately wide apparent fields of view
  • Mounting threads: 1.25 inch filter thread; 28.5x0.75 MM on both sides: Threads into eyepieces; camera adapters and other accessories with standard 1.25 inch threads; And can be stacked with additional 1.25 inch threaded accessories
  • 85 mm focal length; reduction factor of about 0.5X; depending on spacing 0.5x focal reducer effectively halves the focal length of a telescope; enabling lower magnification; a wider field of view; and shorter exposure times for astrophotography
  • Nearly 3D Viewing: The Binocular Viewer turns the telescope into a binocular; This replaces the fatigue of observing with one eye; This means you can easily provide an immersive 3D viewing experience for lunar and planetary observations
  • With 1.85x and 3x Barlow: The BinoViewer will work on any telescope with approximately 4 inch of inward focus travel; If your telescope has less focus travel; you can adjust the focus using the 1.85x and 3x magnifying glass included with the BinoViewer

Brand A ALSTAR

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4 out of 5
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129 ratings | 53 reviews
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