ZWO FF80 APO - 80 mm f/7.5 APO Quadruplet Refractor - FF80 - On Sale! Tripod Extensions Retractable Eyecup

Retractable Eyecup

The pixel size is 5

Askar FRA500 has inherited the legacies of superior FRA- series designing

All you have to do is follow the arrows pointing to your chosen celestial object on your app-enabled smartphone

ZWO FF80 APO - 80 mm f/7.5 APO Quadruplet Refractor - FF80 - On Sale! Tripod Extensions Retractable EyecupThe ZWO FF80 APO is a f 7. 5 APO refractor with a flat field optical design there is no need to add a field flattener to this system! It is a pleasure to work with a system that does not require a separate field flattener; it eliminates the hassle of calculating the back focus distance and figuring out which spacers you require to achieve that distance for best focus. Just add any accessories you need, focus carefully, and start shooting! The FF80 has