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URL: http://www.thaiexcite.com/Optolong-L-Pro-Clip-Filter-for-Canon-EOS-Cameras-with-APS-C-Sensor.html
Optolong L-Pro Clip Filter for Canon EOS Cameras with APS-C Sensor
รายละเอียด
รายละเอียด
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.
Compatibility List:
Warning: The use of EOS-C clip filters is not possible when using Canon EF-S lenses.
This filter will/will not work with the following camera models:
- Canon 450D Rebel XSi Yes
- Canon Digital Rebel XS (digital) Yes
- Canon Digital Rebel XSi Yes
- Canon EOS 1000D Yes
- Canon EOS 450D No
- Canon EOS 500D Yes
- Canon EOS Kiss F Yes
- Canon EOS Kiss X2 Yes
- Canon EOS Kiss X3 Yes
- Canon EOS Rebel T1i Yes
- Canon EOS 6D Yes
- Canon EOS 60D + 60Da Yes
- Canon EOS 7D Yes
- Canon EOS 70D Yes
- Canon EOS 50D Yes
- Canon EOS 650D Yes
- Canon EOS 600D Yes
- Canon EOS 550D. Yes
- Canon EOS 700D Yes
- Canon EOS 1100D Yes
- Canon EOS 1200D Yes
- Canon EOS 40D Yes
- Canon EOS 30D Yes
- Canon EOS 20D Yes
- Canon EOS 10D Yes
- Canon EOS D60 Yes
- Canon EOS D30 Yes
Additional Information
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 M42 compare image by Luca Fornaciari Astrophotography
III The Horsehead Nebula©Luca Fornaciari Astrophotography
Ⅳ Milky Way+Jupiter with Optolong L-Pro filter Copyright:Gernot Obertaxer
Imaging telescope or lens:Sigma 35mm F1.4 DG HSM Art
Camera:Canon6D(a)
Mount:Fornax Mounts Lightrack II Resolution: 5354x3572 Dates:May1,2019 Frames:
Optolong L-PRO: 25x150"ISO1600 Integration: 1.0h
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!
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.