Danubia K17 Kellner 17mm 1.25" Astro Telescope Eyepiece Table Top Tripod autofocus is fast

autofocus is fast

The lens drives a smooth

simply twist them when wearing glasses

lightweight

or eye of the subject

Danubia K17 Kellner 17mm 1.25" Astro Telescope Eyepiece Table Top Tripod autofocus is fastDanubia 1. 25" K17 Kellner is a 17mm eyepiece for Astro Telescopes which is fully coated and offers a wide angle field of view, so is really useful for locating smaller objects in the night sky. Easy to fit to a telescope with a 1. 25" diameter eyepiece aperture, the Kellner style of eyepiece, is an achromatic one and has a three lens design. It gives excellent eye relief and is a terrific aid to extended night time viewing.