RK Eyepiece 3.6mm - 1.25" - Three Element - MgF2 Coating

RK eyepieces are an improved variant of the classic Kellner design. The field sharpness is improved and the viewing comfort is better than in Plossl eyepieces of the same focal length.

RK eyepieces are the ideal choice for astronomers looking for a low cost but good quality eyepiece. The somewhat longer eye relief makes them well suited for beginners.

The RK eyepiece has a rubber eyeguard as protection against stray light. The eyeguard can be folded down for eyeglass wearers.

The RK 3.6mm

This eyepiece has a longer eye relief than many other eyepieces of the same focal length. Even beginners will have no difficulty viewing the entire 45° field of view. The on-axis sharpness of this eyepiece is particularly good, making this eyepiece an ideal choice for high-contrast planetary observing.