Extra-low dispersion (ED) glass: The SV503 80mm features ED glass for high-contrast, crystal clear, color-accurate images, perfect for discerning observers;
Fully Multi-Coated Optics: The whole optical lens adopts the technology of ultra-wideband multilayer coating.Fully multi-coated ED optics deliver outstanding views during day or night;
Dual-Speed Focuser for Precision: Featuring a 1:10 dual-speed rack and pinion focuser, the 2-inch toothed focuser allows for smooth and precise focusing adjustments, ensuring sharp images for both visual observation and astrophotography;
Top-quality material: The appearance of the SV503 OTA is baked with high-end fine-grained paint,with exquisite appearance and delicate feel,all machined by CNC;
Areas of application:SV503 80mm F7 telescope would be better begin for astronomy amateurs to do astrophotography.