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Tele Vue Starbeam with Flip Mirror - Universal Base.

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Tele Vue Starbeam with Flip Mirror - Universal Base.

By Televue

$639  
or 4 easy payments of $159.75 with What's this?
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Ships from USA
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Other Information: SFU-2004
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Technical Details:

  • Brand Name: Televue
  • Model: SFU-2004

Product Description:

Starbeam's unique flip mirror feature provides comfort and flexibility for viewing straight through and 90°. Viewed straight through, you see the natural sky with a 10 arc-minute (1/3 Moon dia.) "red-star" showing your scope's position. When your scope is pointed high, flip the mirror into position for more comfortable viewing. The size, colour and adjustable brightness of the "red-star" makes it easy to see against any twilight to dark sky background.With its 39mm aperture, the projected image is easily seen any distance behind Starbeam, whether 2 inches or 2 feet! The finely made glass lens acts as a beamsplitter to combine the natural sky background with the superimposed red pointing "star." The first lens surface acts as a collimating mirror so the "red-star" staysstationeryagainst the sky background regardless of your eye position. A compensating curve is designed into the second lens surface to provide the normal sky background view and is multi-coated to eliminate double images.Elegant in design and form, Starbeam is custom machined completely from aluminium and then black anodized, even down to the "push-pull" thumb screws. No tools are required to align Starbeam with your telescope. Two base channels are available, one for Tele Vue telescopes (except Ranger) and one for scopes of 4" or larger tubes. Mounting hardware included.

Publisher: Televue
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