Evoguide 50 APO Refractor - SKU# S11170

by Sky-Watcher
  • 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

Sky-Watcher Evostar refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.


SKU S11170
UPC 050234111706
Optical Info
Optical Design ED Doublet
Lens Coatings Fully Multi-Coated
True Aperture (mm) 50
Primary Aperture (mm) 50
F/Ratio 4.8
Focal Length (mm) 242
Observational Info
Dawes Limit 2.32
Rayleigh Limit 2.79
Limiting Mag. 11
Minimum Magnification 9
Maximum Magnification 98
General Info
Focuser 1.25" Helical
OTA Length (Retract/Ext.) 10.5"
OTA Outer Diameter 2.2"
OTA Weight (with accessories) 1.9
Mounting Accessories Guide Rings
Included Case No
Corrector No

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