ZWO FF70 APO Flat-Field Apochromatic Refractor (FF70-APO)

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ZWO FF70 APO Flat-Field Apochromatic Refractor The ZWO FF70 APO Refractor is a lightweight and compact refractor telescope designed for visual observation and astrophotography. *Fo cus can be achieved within a back focus range of 32.5–82.5 mm, measured from the M54–M48 interface shoulder. Main Features of the telescope Flexible Connectivity for Multiple Configurations Uniqueness 1. Lightweight & Compact This model features a 70 mm aperture and 490 mm focal length (f/7.0). It offers an excellent balance between portability and performance. The optical tube weighs just 2.5 kg. Total system weight is 3 kg including the mounting rings and dovetail plate. 2. Four-Element Optical Design The unit features a four-element, air-spaced design. All elements work together to deliver a flat imaging field without a field flattener. One ED (extra-low dispersion) element reduces chromatic aberration. This results in superior color correction and impressive image clarity. 3. 44 mm Image Circle — Full-Frame Support With a 44 mm image circle, the unit fully supports full-frame sensors and advanced imaging setups. It delivers sharp star fields across the frame. This ensures professional edge-to-edge performance to meet astrophotography demands. 4. Native Flat-Field Design The native flat-field optical design removes the need for leveling mirrors. This streamlines the setup for any astrophotography enthusiast. No complex back focus calculations are required. Simply attach your camera and start capturing once focus is achieved. Convenient Design 5. Coarse & fine focus adjustment Equipped with a 2.4-inch rack-and-pinion focuser, it offers precise control using a 1:10 coarse and fine focus mechanism. A built-in 360° rotator at the rear allows for smooth camera angle adjustments. It pairs perfectly with an asiair pro for remote control. 6. Retractable Dew Shield The optical tube features a retractable dew shield. This reduces storage length and protects the optics from moisture. CNC machining and internal anti-reflection coatings minimize stray light. This ensures high contrast during deep-sky sessions. 7. Quick-Release Mounting Rings The mounting rings are fully detachable. This allows for a quick and easy setup or teardown of your telescope system. 8. Photography Extension Tube A photography extension tube is included. It features a 2-inch filter thread and rear adapters in M48×0.75 and M54×0.75 standards. This versatility allows for seamless integration with a wide variety of professional imaging accessories and cameras. Performance Optical Layout Star Field Map Product Diagram Technical Specifications In the Box Warranty ZWO 2-Year Warranty Show more