SVBONY 2inch LRGB Imaging Filter for Telescope Deepsky/Planetary CCD Imaging

Description

SVBONY 2" Filter LRGB Imaging Sets for Astro Telescope Monocular Eyepiece Filter
Features:
Suitable for deepsky and planetary CCD imaging, work well with debayered monochrome CCD cameras.
RGB-imaging allows equal weighting factors for each channel, very important for automated imaging.
The ideal raw material for image processing in the sRGB color space is available with LRGB filter set and mono CCD camera.
2" astronomy filter with standard M48x0.75male filter thread (no female thread, so it cannot be stacked with other filters).
Ultra-thin filter cell to minimize vignetting; clear optical aperture of 45mm.
Precision CNC-machined metal filter cell with sand     blasted black anodized finish, anti-reflection treatment, and laser engraving.
Note: The filters are not designed for sun observation. DO NOT LOOK AT THE SUN WITH FILTER.
Spectral Curve Transmission Characteristics
High and precise blocking of offband, 95% transmission at passband.
Blocks out infrared wavelengths (700-1100nm) so a separate IR cut-off filter is not required for imaging applications.
Both surfaces are fine optically polished, accurate to 1/4 wavelength or better, and parallel to within 30 seconds or arc.
2mm thick optical glass substrate material.
Very high surface quality of 60/40 or better (US Military Spec MIL-O-13830).
Optical Coating Specifications
Multi-layer anti-reflection coated.
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) so that there is no deviation due to temperature changes during use.
Precise and homogeneous coatings ensure high values of desired passband and blocking of unwanted offband.
Package Includes
SVBONY 2" LRGB Astrophotography Filter Set
Silver Cardboard Box
Plastic PP Case
EVA Case Lining
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