Description

we are manufacutere and have specialized in optical coating industry more than *5years with the market for astronomical filters: O-III, H-alpha, H-beta, UHC,CLS, Moon&skyglow, S-II, LRGB etc. as well as bandpass filters, IR-CUT filters, beam splitter mirrors, laser optics, CMOS windows, high reflective mirrors, supper AR coating etc.

Full range of OPTOLONG Astronomy Telescope filter products have been double sided polishing to ensure that the substrate flatness, and the finished coating filter with high optical performance.Laser Inscription LOGO, ultra-thin frame.OPTOLONG astronomical filters inspected by Shimadzu spectrophotometer in order to guarantee the most accurate spectral characteristics so that make your photographic image clearer and brighter.