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SVBONY SV198 Mini 50mm Guiding Scope Finder Scope w/ Dual Helical Focuser

$ 79.19

Availability: 97 in stock
  • Focusing seat accuracy: 1mm
  • Item Diameter: 1.25 in
  • Focuser: Dual Helical + Telescopic Design
  • Condition: New
  • MPN: W9155A
  • Compatible Brand: Universal
  • Tube diameter: 55.5mm
  • Lens Structure: 2-Elements/ 1Groups
  • Features: Fully Multi-Coated
  • Rough Focusing stroke: 38mm
  • Type of Optics: Achromat Refractor
  • Total Length: 223mm
  • Net Weight: Approx. 770g / 28.1oz
  • Type: Lenses
  • Dew cap diameter: 58mm
  • Model: SV198
  • Color: White
  • Base installation type: Vixen standard interface
  • Tube material: Aluminium
  • Focal ratio: f/4.1
  • Focal Length: 206.6mm
  • Connection to Eyepiece: 1.25" and T2
  • UPC: 714559028209
  • Telescope Type: Guiding Scope
  • Aperture: 50mm / 1.97in
  • Compatible Model: Uniserval
  • Blackened Lens Edges: Yes
  • Brand: SVBONY
  • Compatible Series: Universal
  • Dual Helical Focuser Focusing stroke: 11mm

    Description

    Product Description
    The versatile 50mm aperture Guide Scope with a built-in Dual helical focuser.
    Helical focuser collar will not rotate attached autoguider devices during focus adjustments.
    Can also be used as a right-angle correct-image optical finder scope (Eyepieces and Prism Diagonal sold separately).
    This compact lightweight mini Guide Scope perfect for guiding, searching or spotting.
    Fast and Fine Focusing
    38mm pull type rough adjustment to ensure enough focusing range. 11mm double helix focusing ensures the focusing accuracy.
    Excellent Mechanical Extinction
    Improve the efficiency since less light is lost due to reflection and improve the contrast of the image by elimination of stray light and the coating reduces the glint from a covert the  telescopic sight.
    Solid Metal Guide Scope Rings
    The guide scope rings make it easy for mounting a guide scope parallel to the main telescope.
    Dovetail Plate(Hollow)
    We improve the ordinary dovetail into the dovetail plate with hollow. So the installation position of the guide ring can be easily adjusted according to your own guiding scope set size.
    Used as a mini astronomy telescope
    for celestial observation and terrestrial observation;
    Used as a guiding scope
    Used as a finder scope
    The SV198 can be used as a high-end guid
    ing scope
    , a
    finder scope
    and a small astronomical
    telescope
    . Or use it as a comfortable, large viewfinder to waste less time finding objects in visual observation.
    It can focus perfectly with a regular 1.25-inch zenith mirror and illuminat
    ed eyepiece without adding a multiplier.
    Illuminating E
    yepiece (W9115A or F9132A) +
    Z
    enith
    /E
    rector (F9171B
    or
    W9107A)
    = Superior
    I
    lluminated finder scope
    .
    about svbony