ZWO 30mm f/4 Mini Guide Scope

ITEM #
ZWO-30120
  • Guide Scope
  • Compatible with all ASI Cameras
  • Optical Design: Doublet
  • Aperture: 30 mm (1.18")
  • Focal Ratio: f/4
  • Focal Length: 120 mm
  • Camera/Eyepiece Connection: M42x0.75
  • Back Focus: Adjustable, 0 to 20 mm

 

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  • Regular price $99.00

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ZWO 30mm f/4 Mini Guide Scope

This 30 mm (1.18-inch) aperture ZWO Guide Scope is compatible with all ASI cameras.

Guide Scope

Attached to your ASI astroimaging camera and a computerized mount controller, you will be able to guide your telescope to your desired area of the sky and lock it onto a specific star to hold your images stable.

Doublet

The optical lens in 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 lb)

SPECIFICATIONS

Accessory TypeGuidescope
Aperture30 mm (1.18")
Back Focus0 to 20mm
Camera/Eyepiece ConnectionM42x0.75
Dawes Limit3.87 arcseconds
Focal Length120 mm
Focal Ratiof/4
Free ShippingYes
Hightest Magnification60x
Light Gathering Power18x
Limiting Magnitude11.1
ManufacturerZWO
Optical DesignDoublet
Tube Diameter44mm
Tube Length122.5mm
Weight0.55 lb (250 g)

INCLUDED ITEMS

  • 30 mm Mini Guide Scope
  • Dovetail with mounting ring (1/4-inch screw hole)

     

Customer Reviews

5 Based on 3 Reviews
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JG
05/23/2019
Jacob G.
United States

ZWO F4 miniguide scope

Excellent Very light Great for autoguiding I use it for Sharpcap polar alignment, which is a great quick way to get polar alignment in under 10 min.

JB
05/21/2019
john B.
United States

good guide scope

works well w/ zwo 120 camera. small and light as it can be worked on my at6rc and mount combo. I like the zwo products.

JG
04/18/2019
Jacob G.
United States

Zwo f/4 miniguide scope

Very light, plenty sensitive; I use it for polar alignment in Sharpcap with no problems