Orion EON 115mm ED f/7 Triplet Apochromatic Refracting Telescope

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Orion EON 115mm ED f/7 Triplet Apochromatic Refracting Telescope

  • A beautifully constructed, 115 mm (4.5") aperture triplet ED apochromat ideal for both astrophotography and serious visual observations
  • Fully multi-coated, three-lens ED optics and versatile f/7.0 focal ratio yields high-contrast images with excellent color correction and sharpness
  • Rock-solid, rotatable 3" dual-speed (11:1) Crayford focuser provides precise focus control and stable support of imaging accessories
  • Includes two split-clamp tube rings, narrow dovetail bar, thread-on metal objective cap, and a hard case with a custom die-cut foam insert for protection during transport and storage
  • Relatively lightweight 15.2-pounds optical tube can be stably supported by medium-size equatorial mounts


Aperture115 mm (4.5")
Dawes Limit1.01 arcseconds
Focal Length805 mm
Focal Ratiof/7
Hightest Magnification230x
Light Gathering Power270x
Limiting Magnitude14.1
Optical DesignTriplet
Tube Length881mm
Tube Weight15.2 lbs