Esprit 120ED APO Triplet

Esprit 120ED APO Triplet

Esprit 120ED Super APO Triplet 

    The 5-element 80/100/120/150 ED Super APO Triplet refractors are identical to the triplet ED120 and triplet ED150 refractors, but they have in addition a doublet field flattener lens to get a 44mm diameter flat field without aberration and distortion.

   Their M48x0.75 adapter for cameras assure larger clear aperture than the classic M42x0.75 adapter (also called T adapter) and thus eliminates any vignetting (loss of light in the edges) on big full frame cameras.

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

Optical Design

Apochromatic Refractor

Diameter / Aperture

120 mm

Focal length

840 mm

Highest Practical Power

240x

F/Ratio

F/7

Finder Scope

8x50 Right angle Erect Image 

Diagonal

2" 90 deg. Dielectric Diagonal with 1.25" adapter

Focuser Diameter

3" linear Power Focuser

Eye Piece

LET 2"-28mm

Tube Weight

9.61kg

Tube Dimensions

12.5cmx75cm

Shipping Weight

26 kg

Shipping Dimensions

122x46x48cm 3