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The FF70 APO uses a quadruplet air-spaced APO lens design, including one piece of ED glass. It supports 44mm, full-frame imaging.
With an aperture of 70mm, a focal length of 490mm, and a native focal ratio of f/7.0, the FF70 APO is versatile and can be used for both visual observation and astrophotography.
The telescope's self-flattened design means no more precisely calculating your backfocus—if you're achieving focus, you'll get sharp stars, period.
This also means there's no need for a separate field flattener—your stars will sharp all the way to the corners, straight out of the box.
The FF70 APO OTA weighs only 2.5kg and the gross weight, including the tube rings and dovetail plate, is 3kg—about 6.5 pounds.
The FF70 APO also comes standard with a photographic extension tube, including M48*0.75 and M54*0.75 adapters, which work well with modern cameras. It also provides a built-in 2-inch filter thread, in case you don't have a filter drawer yet.
The handle bar of FF70 APO doubles guide scope mount, and there are two additional finder bases on both sides of the focuser, providing additional mounting positions for other astronomical accessories. (This is a great place to mount an ASI AIR!)
The FF70 APO boasts a rigid, dual-speed R&P 2.4-inch focuser, which has a 1:10 fine adjustment and a 360° scale field rotator at the rear end for precise angle adjustment.
The dew shield of the FF70 APO is a retractable design, further shortening the overall length and increasing portability. The entire lens tube of the FF70 APO is crafted using high-quality CNC machining. The inside of the FF70 APO's dew shield is covered with matting paint to effectively reduce stray light reflections.
Main Features
Four-Element Optical Design
44 mm Image Circle — Full-Frame Support
Convenient Design
Starfield Map
Specifications
