This focuser is more stable and more accurate than usual Crayford focusers. We recommend the focuser especially for astrophotography. ♦ Telescope connection: M90x1 thread (female) with 360° rotation. ♦ Individual telescope connection possible via the optional adapter Sonder-M90. ♦ Eyepiece side connection: 2" and 1.25" receptacle with compression ring ♦ Minimal height to M90 thread: 90 mm ♦ Draw tube travel: 50 mm ♦ Dual speed 1:10 for accurate focusing ♦ Bearing via stainless steel rail - absolutely free from twisting ♦ Central locking of the draw tube, guaranteed without tilting
Item condition: used Item with possible small cosmetic deffect, but every function works perfect