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URL: http://www.thaiexcite.com/Optolong-UHC-Clip-Filter-for-Nikon-Cameras-with-Full-Frame-Sensor.html
Important Note: Nikon clip-on filter for use with the following cameras only: Nikon FF D4/D4S, D600/610, D750, D800/800E, D810/810 A, DF. If your camera is not listed here, then please do not purchase this item.
Detailed description coming soon. Item is in stock and ready to ship.
UHC Spectrum for Reference
Optolong UHC Performance
I The Milky Way Hongkong, Cityscape shot by Vincent Cheng
II NGC2244 Rosette Nebula _by Dengyunwei
Using Optolong UHC filter
III You can see the Milky Way in Kunming City, image shot by Yule who used Optolong UHC.
See the compare.
Ⅳ M42 by Jxsky, Optolong UHC filter
V Compare iamge by astrophotographer Luocheng.
About Optolong
While Optolong is a relative newcomer to the astronomy industry, they are no strangers to optics and filters. Optolong is a division of Yulong Optics Company, a high tech company specializing in optical filter design and production. Their products include bandpass filters, flourescence filters, edge filters, longpass and shortpass filters, beam splitters, anti-reflection coatings, optical mirrors and, of course, astronomical filters.
Established in 1999 and based in Kunming City, China, Optolong/Yulong provides nearly 2000 types of optical filter coatings annually to customers worldwide in a wide variety of industries and applications.