A 20 mm focal eyepiece with an extremely wide 100 ° field of view. Outstanding quality and reasonable price. Only from William Optics!
• standard of binding: 2 "
• extremely wide field of view (AFOV equal to 100 degrees)
• Fully Multi Coated optics (fully covered) for great transmission
• reduced chromatic aberration
• great contrast thanks to excellent blackening, no ghosts or flares, beans, etc. artefacts
• parchocal with the other two glasses from the series
• beautifully finished housing, anodised, with a filter thread 2 years
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