ZWO EAF-PRO Electronic Automatic Focuser The new generation of ZWO EAF continues the brand’s signature minimalist design, featuring a robust metal housing and precise angular lines — a perfect fusion of form and function. Available in two versions: EAF and EAF Pro — to suit different user needs. EAF Pro comes with a built-in battery and Bluetooth connectivity, reducing power supply constraints. It also includes manual focus buttons, allowing direct adjustment even after installation — offering maximum flexibility and convenience. Both models deliver a more user-friendly focusing experience, achieving pinpoint focusing accuracy for breathtaking cosmic imagery. Wireless Bluetooth Control The EAF Pro features a built-in low-power Bluetooth 5.0 chip, enabling wireless connectivity with ASIAIR and smart cameras. It is fully compatible with ASIAIR APP, ASIStudio, and ASCOM platform software — offering flexible and cable-free focus control. Micron-level Positioning Accuracy The ZWO EAF integrates a high-precision custom stepper motor with compact yet powerful performance. Featuring a 1:128 reduction ratio, it provides the motor with strong torque and precise control capabilities, achieving micron-level positioning accuracy. Each rotation responds precisely to commands, ensuring accurate and reliable focusing. 5 kg（11.02lbs） High Load Capacity Astronomical observation equipment often requires the use of various heavy components. he ZWO EAF, despite its compact size, can support a high load capacity of up to 5kg（11.02lbs), as rigorously tested in ZWO Laboratory. Its powerful performance ensures stable operation of a wide range of equipment, meeting diverse observation needs. Built-in Lithium Battery Powered by an integrated lithium battery, the EAF Pro frees you from external power constraints and enables truly wireless operation. It offers greater flexibility and ease of use to meet diverse needs. Integrated Focusing Button More Universal Type-C Interface The EAF is an upgrade from the previous version, with its interface upgraded from Type-B to the more universal Type-C. Users can power the EAF directly via a Type-C connection to a camera, computer, or ASlAlR, it also supports wired communication via a Type-C interface. Simplifying cable management and reducing power load. Extensive Software Support EAF supports both ASCOM and INDI protocols, making it compatible with a wide range of astrophotography software, including: ZWO-developed platforms: ASIStudio and ASIAIR APP Third-party software: SharpCap, FireCapture, Maxim DL, The SkyX, SGP, Nebulosity, and more Also compatible with third-party focusing software such as FocusMax Hand Controller The EAF hand controller is made of high-quality, eco-friendly ABS material to ensure a comfortable grip. The hand controller provides an easy method of focusing the telescope, featuring IN and OUT buttons, allowing for smooth manual focusing without relying on a computer or smartphone. This design also minimizes subtle vibrations during operation, helping to maintain precise focus. A “must-have” option for EAF users! COMPATIBILITY When used with ASIAIR, the EAF Pro is compatible with the ASIAIR Plus (RK version) and the entire ASIAIR camera lineup. It is not compatible with the following models: ASIAIR (1st generation, Raspberry Pi 4) ASIAIR Pro ASIAIR Mini ASIAIR Plus (CM4 version) * *Note: There are two versions of the ASIAIR Plus. You can identify the version by the IC number on the device: Suffix “ASIAIRPLUS” indicates the RK version (compatible) Suffix “RPICM4” indicates the CM4 version (not compatible) Technical Specifications Feature EAF EAF Pro Dimensions 41 x 52 x 70.3 mm 41 x 52 x 73.4 mm Weight 215 g 258 g Payload 5 kg 5 kg Motor Specifications Stepper motor, step angle 7.5°, reduction ratio 1:128 Stepper motor, step angle 7.5°, reduction ratio 1:128 Communication Method USB Type-C USB Type-C/Bluetooth Power Supply USB Type-C (5V 500mA) USB Type-C (5V 500mA), Built-in Battery Battery N Y Temperature Sensor Hand Controller Interface N Y Power Switch N Y Status Indicator Light N Y Focus Button Y Y Software ZWO ASIAIR APP, ZWO ASIStudio; (ASCOM platform and various ASCOM-compatible third-party software) ZWO ASIAIR APP, ZWO ASIStudio; (ASCOM platform and various ASCOM-compatible third-party software) In the Box EAF-N Body Standard Bracket Set of Flexible Coupler x4 2m USB 2.0 Quick Guide Spacer x5 M4*8 Hex screws x 4 M5*10 Hex screws x 2 2mm / 3mm Hex wrench Manuals & Warranty ZWO 2-Years Warranty ZWO General Product & Software Manuals Installation Guide
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