Telescopes with Crayford focuser

Crayford focuser

— the presence of the Crayford focuser in the design of the telescope. A focuser is a system responsible for focus the image in the eyepiece, more precisely, for moving the eyepiece back and forth, which ensures focus. The Crayford system provides good focus smoothness and virtually no backlash, making it the most advanced option for consumer grade telescopes. Such focusers can be found in all price categories of telescopes, however, for high-end models, their presence is actually a must.