Product DetailsImportant 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. The Optolong L-Pro clip-in filter reduces the effect of artificial light pollution and natural skyglow for visual observing and for photographic applications with color CCD and DSLR cameras. While the Optolong UHC and CLS filters help to block the effects of light pollution, they pass light only in the green and red part of the visible spectrum. The L-Pro filter has a more sophisticated multi-layer coating that not only passes green and red light, but also blue and yellow/orange light. This results in a more natural color cast in images of deep-sky objects. The filter also suppresses IR wavelengths for photographic applications. The Optolong L-Pro clip-in filter improves image contrast by passing light from many types of nebulae while selectively blocking the transmission of light from high and low pressure sodium vapor and mercury vapor lights as well as skyglow caused by naturally occurring neutral oxygen atoms in Earth’s atmosphere. The filter passes light emitted by hydrogen atoms (at 486nm and 656nm), oxygen ions (at 496nm and 500nm), nitrogen ions (at 654nm and 658 nm), and sulfur ions (at 672nm). These bands of light are emitted by emission nebulae such as the Orion and Lagoon Nebulae, planetary nebulae such as the Ring and Cat’s Eye Nebulae, and by supernova remnants such as the Veil Nebula. The filter can also help improve the contrast of stars and galaxies against the background sky, especially in photographic applications. The filter can also help improve the contrast of stars and galaxies against the background sky without sacrificing color balance, especially in photographic applications. Additional InformationSpectrum for Reference
L-Pro Performance I Comparason image was shot by Arnaud Besancon All the pictures have been realised with 5D3 Astrodon modded and Samyang 24mm F1,4 at F2, 13s exp. time,3600 isos. All the pictures are raw,without post-process
II This Milky Way is shot by @YBeletsky in September with Optolong L-Pro filter for Nikon full frame cameras. Colorful sky over the observatory :) Here is the view of the Magellan telescopes of Carnegie Las Campanas observatory under the stars.
III The Lovers' Tryst shot in The Pinnacles Desert, Western Australia by Astrordinary Imaging Whenever you are happy or upset, don't forget to share and express love to your loved ones. The Lovers' Tryst shot in The Pinnacles Desert, Western Australia by Astrordinary Imaging with L-Pro filter.
Ⅳ M45 by Gary J Palmer Imaged earlier in the week with a bright moon. As I like random numbers 76 x 60 seconds processed in Pixinsight. SHARPSTAR 86mm Quad ZWO 094 PRO in ROI Optolong L-Pro filter Sharpcap
V Here the final Image of comet 46/P Wirtanen and the Pleiades, shot by Blake Estes. This imaging run ended up being a marathon that took about 22 hours of processing, using Optolong L-Pro filter for imaging. Its absolutely perfect!
Ⅵ M31 Andromeda by Gary Palmer Imaged earlier in the week with a bright moon. 150 x 60 seconds processed in Pixinsight. SHARPSTAR 86mm Quad ZWO 094 PRO in ROI Optolong L-Pro filter Sharpcap
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. |
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