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Alstar 50mm Compact Deluxe Finder & Guidescope Kit with 1.25' Double Helical Focuser

4.4 (1) Write Review
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$79.97

$ 31 .99 $31.99

In Stock

About this item

  • Have a builtin worm focuser with Brass Compression Ring and 2 thumbscrews; 43 mm focusing range about 10 mm focusing range with micro focusing Helical focuser; the rest is by a fixable scaled drawtube is made by an extremely precise focus adjustment
  • Adjustable aim dovany weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses; etail guide scope bracket installs on virtually any astrophotography telescope quickly and easily
  • 200 mm focal length; Compact mini guide scope designed for use with astrophotography telescopes up to 1500 mm focal length with bright; wide field optics puts numerous potential guide stars in view so you will never have to search for one
  • The sturdy metal housing made ​​of black anodized aluminum; Looking out is solid and very robust; A milled ; knurled ring allows precise fine focus adjustments; It comes with matching pipe clamps; A Synta style mounting plate to make installation easily
  • Mini guide tube: Quickly find objects and guiding stars; Designed for visual and photographic use; Worm focuser; Fast focusing; Prevents rotation of camera and eyepiece; Comfortable large viewfinder to waste less time finding objects in visual observation


Product Description

Freedom to Choose

Function Point 1

43mm Focusing Range

Function Point 1

48mm Focusing Range

Function Point 1

88mm Focusing Range

Function Point 2

200mm Focal Length

Function Point 2

240mm Focal Length

Function Point 2

400mm Focal Length


D. R. Bostick
Reviewed in the United States on February 28, 2021
I very much appreciate the double helix focuser. The draw tube acts as the first helix course focuser with its markings. The rotating second helix focuser is the fine focus and has its own set of markings. I am using this as a guide scope. This made focusing my guide camera easy and even easier a second time. The image attached is it on a refractor with vixen mount where the finder scope use to go.