-40%
Astronomy Telescope Multi Layers Anti Reflection Coating Eyepiece Cut
$ 50.76
- Description
- Size Guide
Description
Astronomy Telescope Multi Layers Anti Reflection Coating Eyepiece CutFeatures:
Non-cementing optical substrate coating
Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band.
Ultra-thin filter cell minimize vignetting by maximize possible
Aerometal Material Precise CNC Machining Sand Blasting
Process Black Anodized Finish Extinction Treatment to
Prevent Reflection Laser Engraving No Fading
90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm&500nm, SII672nm and H-beta 486nm).
0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nmand 578nm).
Suitable for color CCD cameras and unmodified DSLRs
CLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution.
Light pollution filter do not eliminate the effects of light pollution or increase the object ' s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.
WARNING:
The filters of SVBONY are not designed for sun observation. DO NOT LOOK AT THE SUN WITH SVBONY FILTER. You would be BLIND if you fail to observe the warning.
Kind note:
About Color:
Light, computer display and other reasons, pictures and objects may slightly chromatic aberratio (color fifference), please refer to the material item
About Coating:
Interferential filter to change surface color depending upon light and movement. Please in kind prevail.
About Product Object:
All of specifications change in order to improve product quality. We ask your understand if any update informations publish delay.
About Product Overview:
Please note that this series of filter as same as specifications, processing technic, test methods. It is only size difference
Package Detail:
1 X 2" Svbony CLS Telescope Filter