APM Eyepiece XWA HDC 20mm 100° 2" (56996)

Extreme wide-angle eyepiece with exceptional field correction and color accuracy.

This eyepiece features a robust anodized body with fully multi-coated optics for maximum light transmission and sharp image quality. Lens edges are effectively blackened to reduce stray light, enhancing contrast. It is waterproof, adaptable between 2” and 1.25” formats (except for the 20 mm version), and includes filter threads for both sizes. The conical upper end allows compatibility with binocular attachments, while the removable eyecup offers flexibility for camera integration.

Perfect for Deep Sky observations, this eyepiece excels at high magnifications, maintaining a full view of larger nebulae or star clusters without compromising detail or clarity.

Specifications

• Capacity
  • Focal length (mm): 20
  • Connection (to the telescope): 2"
  • Apparent field of view (°): 100
  • Eye relief (mm): 15
  • Coating of optical system: FMC (Fully Multi-Coated)
  • Number of lenses: 9
  • Number of groups: 6
  • Field stop (mm): 37
• Special features
  • Adjustable eyepiece cup: Yes (folding)
  • Filter thread: Yes
  • Inert gas charge: No
  • Thread for camera recording: Yes
• General
  • Type: Eyepiece
  • Type of build: XWA (Extreme Wide Angle)
  • Length (mm): 160
  • Diameter (mm): 68
  • Weight (g): 680
  • Series: HDC