Plössl

A Plössl eyepiece is a popular type of eyepiece for telescopes, offering... 

Wide angle eyepieces

A wide-angle eyepiece is an accessory for telescopes that offers an expanded... 

Reticulated Eyepieces

A reticle eyepiece is an accessory for telescopes equipped with crossed wires... 

Barlow

A Barlow lens is an optical accessory used in astronomy to increase... 

Zoom Eyepieces

A zoom eyepiece is an accessory for telescopes that allows for continuous... 

Binoculars

A binocular is an optical instrument consisting of two tubes, each equipped... 

Atmospheric Corrector