iOptron iAFS 2" Electronic Inline Automatic Focuser - FA20 Founder Optics Refractors 25" and 2" eyepieces and

25" and 2" eyepieces and other compatible items

NOTE: A photo shows this Tele Vue Eyepiece Adapter being used with a Questar telescope and a Tele Vue Ethos eyepiece

water spots

Smooth iris support with the latest Canon (2009+)

STL-1071 (SBIG STL Camera Adapter)

iOptron iAFS 2" Electronic Inline Automatic Focuser - FA20 Founder Optics Refractors 25" and 2" eyepieces andIntroducing the most versatile inline focuser available, the iOptron iAFS focuser with iLock technology. Utilizing a lead worm movement is the key to the iAFS focusers patented design; this passive position locking system secures most any payload (imaging train) at the stopped position, maintaining focus even as the instrument angle is changed. The iAFS incorporates three focus modes; USB (computer control), on board directional buttons (for powered