optolong astro filter h-alpha 7nm For Sale
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optolong astro filter h-alpha 7nm :
optolong astro filter h-alpha 7nm. Condition is Used. Shipped with USPS First Class Package. bought for EOS 3TI
from optolong style="padding:0px; margin:0px 0px 10px 25px; color:rgb(0, 0, 0); font-family:Arial, sans-serif; font-size:14.6667px; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255, 255, 255); text-decoration-style:initial; text-decoration-color:initial;">1.25"31mm(unmounted)36mm(unmounted)EOS-COther customized size please send email for inquiryCWL(centre wavelength): 656.3nmFwhm: 7nmTpeak: <85%Coating Wavelength: 300-1100nmOptical Denisity: OD3Surface Quality: 60/40Transmitted Wavefront RMS:λ/4Parallelism (arcsec): 30sFine-optically polishing for double-sides—— Ensure accurateλ/4 wavefront and <30 seconds parallalism over the both surfaces
Ultrasonic wave cleaning substrate with purified water—— Cleanup by 13 purified water tank to remove inpurities and dust effectively
Iro source assisted coating—— For durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
Constantly stringent quality testing processes—— Each filter was tested by spectrophotometer and laser interferometer testing spectrum and wavefront to ensure market filter is qualified product
Optolong will spare no effort to serve our customer with outstanding quality products and best servise!
Our vision is your astro imaging perfection
Detailed description coming soon. Item is in stock and ready to ship.
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 450DNo
- 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
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. We invite you to learn more about Optolong/Yulong, their products, facilities, and processes by viewing the short video below: