SVBONY1.25” LRGB Imaging Filters Set for Telescope Deepsky/Planetary CCD Imaging

Description

SVBONY 1.25" LRGB Imaging Filter Set for Deepsky/Planetary CCD Astrophotography
The Svbony LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colors. The LRGB filter set divides the spectrum into its components red, green, blue and luminance.
OIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural color imaging. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.
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.
1.25" astronomy filter with standard M28.5x0.6 male filter thread (no female thread, so it cannot be stacked with other                                     filters).
Ultra-thin filter cell to minimize vignetting; clear optical aperture of 26mm.
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 1.25" LRGB Astrophotography Filter
Silver Cardboard Box
Plastic PP Case
EVA Case Lining
about svbony