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APM Ultra Flat Field 18mm Eyepiece 65° FOV

The 1.25 "UltraFlat Field Eyepiece features a high quality standard and a very compact design, which is designed to remove the field curvature at the edge, resulting in a flat, distortion-free image up to the edge of the visible field of view, even in very fast telescopes.The eyepiece has over - sized eyepiece lenses for the largest possible field of view and a 20mm eyerelief - also suitable for spectacle wearers, the foldable eye-rubber allow a comfortable view.All lenses (8 lenses in 5 groups) have a braod-band-multicoating (FMC) and blackened lens edges.The plug-in sleeve is equipped with a thread for 1.25 "filters.

Specials about this eyepiece!
  • 1.25 "connector with integrated filter thread
  • Large upper field lens for comfortable optical insight
  • Suitable for eyeglasses users
  • Border Sharp Image
  • High quality multi-coating
  • Can be used universally

Delivered with:

  • Eyepiece
  • Caps


Specifications

Type of eyepiece:
Flat Field eyepiece
Focal length:
18 mm
Field of view:
65°
Eye relief:
20mm
Eyegard:
Rubber foldable for eyeglas wearers
Lenses / groups:
8 / 5
Field stop:
23.4mm
Coating:
FMC
Barrel size / Filter thread:
1 1/4" with filterthread
Diameter:
Diameter eye lense 27mm
Height:
45mm
Weight:
206g

Specifications

Connecting thread:
Remove the eyepiece rubber M43X0.75-6h