Danubia PL 17 Astro Telescope Eyepiece

Excellent value Danubia 1.25 inch (31.7mm) PL 17 Plossl 17mm astro telescope eyepiece. Fully coated optics. Comes with front and back plastic caps to protect the optics when the eyepiece is not being used.

To calculate the magnification this eyepiece will give, take the focal ...Excellent value Danubia 1.25 inch (31.7mm) PL 17 Plossl 17mm astro telescope eyepiece. Fully coated optics. Comes with front and back plastic caps to protect the optics when the eyepiece is not being used.

To calculate the magnification this eyepiece will give, take the focal length of your telescope and divide the eyepiece focal length (17 in this case) into it. For example this eyepiece used with a 900mm focal length telescope will give approx 52x magnification.