EvoGuide 50DX Doublet APO Refractor

SKU: S11174

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  • $265.00
  • Regular price $335.00

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  • 50 mm apochromatic refractor with matched lens assembly with one ED element
  • 242 mm focal length
  • f/4.8
  • 1.25” Helical focuser
  • Finder stalk
  • V-style dovetail with rings
  • Prime focus ring

The EvoGuide 50DX APO Guide Scope Astrograph takes Sky-Watcher's doublet design and packages it in a lightweight guide scope. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Mounting to your guide camera is a breeze with convenient M42 rings on the back of the scope, and a beefy single-speed focus ring helps you nail focus. Although initially designed for guide cameras, the EvoGuide 50DX APO Guide Scope Astrograph can be used to shoot fast, low focal length astrophotography when used in conjunction with a focal reducer (not included), producing stunning wide-field images. 

This package includes the EvoGuide 50 optical tube, tube rings, a finder stalk, and a Vixen-style mounting plate. 


Optical Design

ED Doublet

Focal Length (mm)


Focal Ratio


Lens Elements


Lens Glass

Matched lens assembly with one ED element

Included Eyepieces


Included Finder


Included Diagonal


OTA Length

8.875 inches / 10.5 inches with extender

OTA Outer Diameter

2.2 inches

OTA Weight (with accessories)

1.9 pounds

    Barcode: 050234111744