Borg 50mm f/5 Guide Scope Set for T-Thread Camera w/ XY Positioner

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Borg 50mm f/5 Guide Scope Set for T-Thread Camera w/ XY Positioner
$529.00
Item # BG-AG50TXY
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  • The Borg f/5 Guide Scope for T-Thread Camera features a high quality 50mm objective with 250mm focal length.
  • Package includes Mini 50 Objective Assembly, XY Positioner, (2) Extension Tube L, M57/60 Extension Tube M, M57 Drawtube, M57 to M36.4 adapter, T/T adapter, and TC-XT adapter.
  • The Borg 50mm f/5 Achromatic Guidescope is 245mm long, weighs in at 705 grams, and is designed for T-threaded cameras.
  • X-Y offset positioner allows the CCD camera's sensor to be moved around the guide scope field of view so that the number of available guide stars is maximized.
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Borg 50mm f/5 Achromatic Guide Scope Set for T-Thread Camera w/ XY Positioner


This Borg f/5 Guide Scope for T-threaded cameras features a high quality 50mm objective and 250mm focal length. It provides a solid base upon which very compact and stable guide scope systems may be built.

The X-Y offset positioner is compact, lightweight and allows the CCD camera's sensor to be moved around the guide scope field of view (±12mm X and Y travel) so that the number of available guide stars is maximized. This approach allows for the flexibility of positioning the guide camera, yet eliminates the need to use 3-point ring systems which are prone to causing flexure problems.

Package includes Mini 50 Objective Assembly, XY Positioner, (2) Extension Tube L, M57/60 Extension Tube M, M57 Drawtube, M57 to M36.4 adapter, TC-XT adapter, and T/T adapter.

Borg 50mm f/5 Achromatic Guidescope for T-Thread Camera w/ XY Positioner Specifications...


  • Aperture: 50mm
  • Focal Length: 250mm
  • F-ratio: 5.0
  • Lens Configuration: 2 elements in 2 groups
  • Coating: Fully coated
  • Physical Length: 245mm
  • Tube Diameter: 60mm
  • Weight: 1 lb. 8.9 oz.
  • Filter: 52mm (front hood)


Borg Product Number: AG50TXY
Additional Information

Additional Information

SKU BG-AG50TXY
Manufacturer Borg
Warranty 1 Year Warranty
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Included Items

Included Items

  • Borg 50mm f/5 Achromatic Guide Scope for T-Thread Camera w/ Mini 50 Objective Assembly
  • XY Positioner
  • (2) Extension Tube L
  • M57/60 Extension Tube M (40mm)
  • M57 Drawtube
  • M57 to M36.4 Adapter
  • TC-XT Thread Adapter
  • T-T Adapter
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