APM 30mm 70° Ultra Flat Field Eyepiece

Code: LS-apm-ufl30

Delivered with:

  • Eyepiece
  • Caps

Delivery Time: December 2020


Available on backorder

Available on backorder


APM Ultra Flat Field 30mm Eyepiece 70° FOV

This is a High-quality eyepiece with long focal length!

The 2″ Ultra Flat Field 30mm 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 eye relief – also suitable for spectacle wearers, the fold-able eye-rubber allow a comfortable view. All lenses (9 lenses in 5 groups) have a broad-band multi-coating (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.

  • 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


Eyepiece entering diameter: 40mm
Diameter eye lens: 32mm
Type of eyepiece: Flat Field eyepiece
Focal length: 30 mm
Field of view: 70°
Eye relief: 22mm
Eyeguard: Rubber foldable for eyeglas wearers
Lenses / groups: 9/5
Field stop: 38 mm
Coating: Multi-coated
Barrel size / Filter thread: 2″ with filter thread
Diameter: 54mm (Largest outside diameter)
Height: 75mm w/o Connection sleeve
Weight: 556g
Connecting thread: Remove the eyepiece rubber M45X0.75-6h
Delivery Time: December 2020

Additional information

Weight 1.23 lbs
Dimensions 2 × 2.13 × 2.95 in


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