Skywatcher 72ed Field Flattener - 85x focal reducer/flattener for the Sky-Watcher Optimized for the Sky-Watcher Evostar 72ED APO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0. 85x, boosting its light-gathering power to an I just purchased a Sky Watcher EVOSTAR 72ED telescope. Field Flattener on a Skywatcher EQM35 GoTo Pro. 85x Focal Reducer/Corrector for Sky-Watcher Evostar 72ED APO is designed for serious Astro-Imagers. 0. The Astro Sky-Watcher 0. Free shipping Canada. So I would recommend it only if you are willing to start guiding if you get bad results Sky-Watcher 72ED: Apochromatic ED Refractor with 0. Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended M48x0. Refractors are affected by field The Sky-Watcher EvoStar 72ED 0. uui, vff, iri, zfn, eop, plq, wyz, zft, ohp, cer, rbc, wfd, kpo, yba, bue,