Focal Length: 15 mm; Eye Relief: 20 mm; Design: 6 Elements in 4 Groups; Coating: Fully coated Broadband Green Film; Color: Ultra black design
100 percent brand new; Multi Coated 2 inch 80 degree F15 mm UWA telescope eyepiece; Packed in a protective plastic case
6 Elements in 4 Groups Design; Fully multi coated; soft eyecup; The inside of the adapter is fully threaded to minimize reflections
Zoom In Twice As Much: Without the barlow lens; the planets would appear so small that hardly any detail would be visible; This 2X Barlow Lens doubles the magnification of the telescope's eyepiece without any significant reduction in optical quality
Fully Multi-Coating: This Barlow lens utilizes a four-lens design with multiple layers of coating to magnify magnification without reducing contrast; This means that your power-boosted observations will be optimized for sharpness; clarity and brightness
Description
Alstar Fully Multi-coated 2" Untra-Wide 80 Degree Eyepiece For Telescope - F15mm. 100% Brand New and High Quality. Multi-Coated 2" 80 degree F15mm UWA telescope eyepiece, packed in a protective plastic case. Barrel Size: 2". This superb ultra wide angle eyepiece has 80 degree field of view. 6-Elements in 4 Groups Design. Fully multi-coated, soft eyecup. The inside of the adapter is fully threaded to minimize reflections. Threaded for filters and Barlow lens: 2-inch standard female thread to fit a filter etc at the rear end, very well built. Focal Length: 15mm; Eye Relief: 20 mm; Design: 6-Elements in 4 Groups; Coating: Fully coated Broadband Green Film; Color: Ultra black design.