SkyWatcher Esprit 120ED APO Triplet

Esprit 80ED, 100ED, 120ED and 150ED Super APO triplets have a doublet field flattener to get a flat field and minimize aberration and distortion.

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Description

Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image.

 

Main Features:

  • Premium optical materials
  • Short focal length and full frame corrected focal plane
  • Excellent field flatness
  • Precision linear power focuser is standard
  • Metallic high-transmission lens coatings
  • Light-baffled optical systems
  • Telescope tube attachment hardware
  • Full-frame Corrected Focal Plane
  • Zero detectable Colour Fringing even on Bright Objects
  • Knife-edge Baffled Optical System

 
 
 

Additional information

Optical Design

Apochromatic Triplet

Optical Diameter (Clear Aperture)

120mm

F-Ratio/F-Stop

F/7.0

Focal Length

840mm

Glass Type

Schott/Ohara ED

Lens Coatings

Fully Multicoated

Tube Diameter

12.5cm

Tube Length

75cm

Tube Weight

9.61kg

Focuser

3.4" Dual Speed Rack & Pinion

Included Eye Piece(s)

LET 2"-28mm

Diagonal

2" 90 deg. Dielectric Diagonal with 1.25" adapter

Included Finder Scope

9×50 Right Angled Erect Image

Corrector

Field Flattener

Image Circle

43mm

Dawes Limit

0.97

Rayleigh Limit

1.16

Faintest Stellar Magnitude

12.5

Maximum Power

240x

Shipping Dimensions

122x46x48cm3

Shipping Weight

26kg

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