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Helios telescope eyepiece. These are from a pair of 100mm observation binoculars and are marked as x22 for that particular instrument and are 23mm in focal length. In excellent optical condition but the body colouring is bleached in places. Good quality optics and coatings give a sharp image over a typical Plossl field of view of approx 50 degrees. No dust caps/box but will be securely packaged for delivery.
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Category: Cameras and Photography:Telescopes and Binoculars:Telescope Parts and Accessories:Eyepieces
Location: Aylesbury