ZWO 30 mm f/4 Mini Guide Scope

Product Details

• Description
• Specifications
• Included Items
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• Once attached to your ASI astro-imaging camera and a computerized mount controller, you will be able to guide your telescope to a desired area of the sky and lock it onto a specific star to hold your images stable.

  Doublet

  The optical lens is made of two simple lenses paired together to bring your images to focus and reduce chromatic aberrations.

  Dimensions

  The aperture of this mini-guide scope is only 30 mm (1.18-inches), the focal length is 120 mm, making this a fast focal ratio of f/4. The tube can travel 20 mm, and the back focus is also adjustable from 0 to 20 mm. The overall tube length is 122.5 mm, with the final 3.5 mm being the length from where the camera connection threads begin. The inside diameter of the tube is 30.5 mm. The outside diameter is 44 mm. Your camera connection will be M42*0.75.

  Total weight including the guider ring and dovetail: 250 g (0.55 pounds).

• specifications

  Aperture	30 mm (1.18")
  Back Focus	0 to 20mm
  Camera/Eyepiece Connection	M42x0.75
  Dawes Limit	3.87 arcseconds
  Focal Length	120 mm
  Focal Ratio	f/4
  Hightest Magnification	60x
  Light Gathering Power	18x
  Tube Length	122.5mm
  Weight	0.55 lb (250 g)

• included items

  • 30 mm mini guide scope.
  • Dovetail with mounting ring (one-fourth-inch screw hole).