Use with monochrome CCD for astrophotography.Ĭ.Suitable for color CMOS and CCD cameras and modified DSLRs.This is important because unfiltered CCD and CMOS sensors are extremely susceptible to UV and IR rays just outside the visible spectrum that can have a very negative impact on image quality. It is used on a digital camera and the video, which do not have an IR protection filter toward an image sensor or were remodeled. All Optolong filters are made of high-quality anti-reflection coated Schott B260 glass that is fine optically polished to 1/4 wave. Filters such as the Five bands bandpass filter L-Pro have gained popularity among astrophotographers and amateur astronomers alike. They have been designing and manufacturing filters since 1998 and supplying those filters to over 700 optical companies around the world. OPT carries a large range of Telescope Filters manufactured by Optolong, who has successfully developed more than 20 popular astronomical filters. Founded in 1999, Optolong has become an integrated enterprise not only specialized in R&D, but also good at manufacturing. Optolong's UV-IR cut filter is designed to block ultraviolet and infrared wavelengths to improve sharpness of the image as most of the optics are designed for the visible spectrum, because it's very difficult to create a lens with the same focal point for the visible and IR spectrum. Optolong is not a newbie to the filter scene. is the brand owner of optolong who is the joint of industry and trade. Vixen R130Sf 130mm f/5 Newtonian Reflector Telescope - R130Sf OTA Only 2604. Color Correction & Minus Violet Filters Sharpstar 130mm f/2.8 HNT Hyperbolic Newtonian Astrograph 13028HNT - Available in 3 Colors. Correctors, Focal Reducers & Flatteners.
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