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Japanese-made, this is a used, fully multi-coated 42mm eyepiece with 1.25-inch barrel. This is in good, but used condition: the glass is clean, as is the barrel, which shows some wear.
Ultimas are 5-element eyepieces, renowned for their incredibly sharp, bright, contrasty views, from edge to edge. Star fields show pinpoint stars. The 42mm has excellent eye relief of 32mm, and a 36-degree field.
No original box; dust caps included. Weight: 8 oz.