The Tele Vue Plössl 20mm 1.25" (SKU: EAP-20/0) is a classic eyepiece with a four-lens optical system that provides high sharpness and contrast across a 50-degree field of view. The Plössl series from Tele Vue is known for its excellent aberration correction and precise mechanical workmanship, making it suitable for use in both entry-level telescopes and advanced optical designs.

The eyepiece has a fold-down eyecup and 14 mm of exit eye relief, which ensures comfortable observation even for people wearing prescription glasses. All optical surfaces are covered with full multi-layer coatings (FMC), which minimizes reflections and maximizes light transmission.

Key Features

• classic Plössl system – 4 lenses in 2 groups
• wide field of view 50° at 20 mm focal length
• full multi-layer coatings (FMC) on all surfaces
• 14 mm of eye relief – comfortable even when wearing glasses
• precision aluminum housing with fold-down eyecup
• compatible with 1.25" filters

Technical parameters

• focal length: 20 mm
• field of view (AFoV): 50°
• Diaphragm diameter: 17.1 mm
• exit pupil distance: 14 mm
• optical system: 4 lenses in 2 groups (Plössl)
• Frame diameter: 1.25"
• 1.25" sleeve length: 22.9 mm
• total length: 53.3 mm
• maximum diameter: 33 mm
• weight: 85 g
• coatings: full multi-layer (FMC)
• eyecup: foldable
• filter thread: 1.25"

Guarantee

24 months