iOptron iAFS 2" Electronic Inline Automatic Focuser (FA20)

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Introducing the most versatile inline auto focuser: the iOptron iAFS focuser with iLock technology! Utilizing a lead worm movement is the key to the iAFS focusers patented design; this method passively locks it at the exact position when movement is stopped, maintaining focus for most any sized payload even as the instrument angle is changed. The iAFS incorporates three movement control modes, USB (computer control), on board directional buttons (for powered manual adjustments) and a manual focus wheel to override the motorized adjustment. Other features include a built-in temperature sensor, dual USB-C ports, solid all metal body, fingerprint resistant surface, 0.6 micron resolution, and position limiters to prevent over runs. It comes standard with a 2 inch visual back, and optional telescope adapters to fit various OTAs are available. The iAFS focusers will be available as the iAFS2 two inch model and the iAFS3 three inch version. Specifications Focuser Inline Auto Focuser with iLock™ Inline Auto Focuser with iLock™ Focuser Size 2" 3" Dimensions 90.5 x 106 x 82mm 94 x 133 x 108mm Weight 783g 1062g Clear Aperture 51mm 68mm Maximum Payload 5kg 6kg Drawtube Travel Distance 30mm 30mm Focusing Resolution 0.6um 0.4um Power/Communication Port USB2.0 Type-C port x2 Type-C USB2.0 port x2 Driving Train Stepper motor Stepper motor Computer Control Yes (ASCOM and INDI) Yes (ASCOM and INDI) Automatic Focusing Yes Yes Motorized Focusing Button Yes Yes Manual Focusing Yes (w or w/o motor power on) Yes (with override) Temperature Sensor Yes (Built-in) Yes (Built-in) Camera Angle Adjustment Yes Yes Warranty One year limited One year limited Show more