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The finest zoom eyepiece available. High-resolution 7-element multi-coated optics, with 55 degree
field at 8mm. Graduated scale in 1mm units indicates exact focal length in use. High-eyepoint
yields comfortable observing even with eyeglasses. Internal zoom lenses move on the smoothest,
most precisely-machined tracks yet developed for zoom optics. Performance is fully consistent
with the finest fixed-focal lenght eyepieces. Threaded for filters, rubber eyecup.
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