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APM Ultra Flat Field 30mm Eyepiece 70° FOV

High-quality eyepiece withlong focal length!

The 2" 30mm 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 (for example f/4) telescopes.The eyepiece has over - sized eyepiece lenses for the largest possible field of view and a 22mm eyerelief - also suitable for spectacle wearers, the foldable eye-rubber allow a comfortable view. All lenses (9 lenses in 5 groups) have a braod-band-multicoating (FMC) and blackened lens edges.The plug-in sleeve is equipped with a thread for 2 "filters.
The eyepiece is ideal for optics with medium or long focal length.

Specials about this eyepiece!
  • 2 "connector with integrated filter thread
  • Large upper field lens for comfortable optical insight
  • Suitable for eyeglasses users
  • Border Sharp Image
  • High quality multi-coating
  • ideal for optics with medium or long focal length

Delivered with:

  • Eyepiece
  • Caps


Specifications

Eyepiece entering diameter:
40mm
Diameter eye lense:
32mm
Type of eyepiece:
Flat Field eyepiece
Focal length:
30 mm
Field of view:
75°
Eye relief:
22mm
Eyegard:
Rubber foldable for eyeglas wearers
Lenses / groups:
9/5
Field stop:
38 mm
Coating:
Multicoated
Barrel size / Filter thread:
2" with filterthread
Diameter:
54mm (Largest outside diameter)
Height:
75mm w/o Connection sleeve
Weight:
556g

Specifications

Connecting thread:
Remove the eyepiece rubber M45X0.75-6h