ZWO Premium LRGB Imaging Filter Set - 2" Mounted
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- Premium 2” LRGB filter set for use with monochrome astronomy cameras
- Precision passbands partially block light pollution from sodium lamps while passing OIII emission from nebulae for a more natural image color
- IR blocking from 700nm to 1100nm to eliminate need for a separate IR-cut filter >92% transmittance, polished to ¼-wave, and fully multicoated to ensure optimum images
- Ideal for use in ZWO manual and electronic filter wheels that use 2" filters mounted in cells with M48x0.75 threads
The ZWO LRGB2 Filter Set includes four 2” mounted astrophotography filters that pass red, green, and blue bands of light as well the full luminance spectrum across the visible band. By taking individual images with each of these filters and a monochrome astronomy camera and combining the separate images with standard processing techniques, you can create beautiful correct-color images of planets and deep-sky objects.
This premium filter set is designed to approximately equalize the sensor response of the ASI1600 monochrome camera, and the RGB color combination is weighted to approximately 1:1:1 for accurate color rendering. These filters also work well with other monochrome astronomy cameras.
All filters have a mechanical thickness of 5mm, with another 2.5mm added for the thread. Each filter is more parfocal with a thickness of 1.9+/-0.03 mm. The filters are mounted in cells with standard M48x0.75 threads for use in most filter wheels that accommodate 2” filters.
The precision passbands of the LRGB filters include a gap between red and green to improve color balance and partially block the sodium line at 589nm to suppress light pollution from low and high pressure sodium lamps. The blue and green filter passbands overlap slightly to include emission from OIII to help achieve a more natural color when imaging nebulae. The ZWO LRGB filters also block infrared wavelengths from 700nm to 1100nm which means a separate IR-cut filter is not required. Each filter has a transmittance of at least 92% in band, and each is optically polished to ¼ wave to help you get superior images. All surfaces have multi-layer antireflection coatings for increased transmittance and elimination of ghost reflections.
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras because they include a Bayer array to achieve color images intrinsically.
Useful Resources
Filter Cell Specifications
D = Filter Cell Diameter = 50.6 mm / 1.99 in
T = Total Filter Height = 7.5 mm / 0.29 in
C = Filter Cell Height (Excluding Male Thread) = 5 mm / 0.19 in
M = Male Thread Length = 2.5 mm / 0.09 in
F = USABLE Female Filter Thread Length = Not threaded, so you cannot stack additional filters
S = Glass Substrate Thickness = 1.8 mm / 0.07 in
CA = Clear Aperture = 44 mm / 1.73 in
Other Information
- Country of Manufacture: China
The ZWO LRGB2 Filter Set includes four 2” mounted astrophotography filters that pass red, green, and blue bands of light as well the full luminance spectrum across the visible band. By taking individual images with each of these filters and a monochrome astronomy camera and combining the separate images with standard processing techniques, you can create beautiful correct-color images of planets and deep-sky objects.
This premium filter set is designed to approximately equalize the sensor response of the ASI1600 monochrome camera, and the RGB color combination is weighted to approximately 1:1:1 for accurate color rendering. These filters also work well with other monochrome astronomy cameras.
All filters have a mechanical thickness of 5mm, with another 2.5mm added for the thread. Each filter is more parfocal with a thickness of 1.9+/-0.03 mm. The filters are mounted in cells with standard M48x0.75 threads for use in most filter wheels that accommodate 2” filters.
The precision passbands of the LRGB filters include a gap between red and green to improve color balance and partially block the sodium line at 589nm to suppress light pollution from low and high pressure sodium lamps. The blue and green filter passbands overlap slightly to include emission from OIII to help achieve a more natural color when imaging nebulae. The ZWO LRGB filters also block infrared wavelengths from 700nm to 1100nm which means a separate IR-cut filter is not required. Each filter has a transmittance of at least 92% in band, and each is optically polished to ¼ wave to help you get superior images. All surfaces have multi-layer antireflection coatings for increased transmittance and elimination of ghost reflections.
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras because they include a Bayer array to achieve color images intrinsically.
- Premium 2” LRGB filter set for use with monochrome astronomy cameras
- Precision passbands partially block light pollution from sodium lamps while passing OIII emission from nebulae for a more natural image color
- IR blocking from 700nm to 1100nm to eliminate need for a separate IR-cut filter >92% transmittance, polished to ¼-wave, and fully multicoated to ensure optimum images
- Ideal for use in ZWO manual and electronic filter wheels that use 2" filters mounted in cells with M48x0.75 threads
The ZWO LRGB2 Filter Set includes four 2” mounted astrophotography filters that pass red, green, and blue bands of light as well the full luminance spectrum across the visible band. By taking individual images with each of these filters and a monochrome astronomy camera and combining the separate images with standard processing techniques, you can create beautiful correct-color images of planets and deep-sky objects.
This premium filter set is designed to approximately equalize the sensor response of the ASI1600 monochrome camera, and the RGB color combination is weighted to approximately 1:1:1 for accurate color rendering. These filters also work well with other monochrome astronomy cameras.
All filters have a mechanical thickness of 5mm, with another 2.5mm added for the thread. Each filter is more parfocal with a thickness of 1.9+/-0.03 mm. The filters are mounted in cells with standard M48x0.75 threads for use in most filter wheels that accommodate 2” filters.
The precision passbands of the LRGB filters include a gap between red and green to improve color balance and partially block the sodium line at 589nm to suppress light pollution from low and high pressure sodium lamps. The blue and green filter passbands overlap slightly to include emission from OIII to help achieve a more natural color when imaging nebulae. The ZWO LRGB filters also block infrared wavelengths from 700nm to 1100nm which means a separate IR-cut filter is not required. Each filter has a transmittance of at least 92% in band, and each is optically polished to ¼ wave to help you get superior images. All surfaces have multi-layer antireflection coatings for increased transmittance and elimination of ghost reflections.
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras because they include a Bayer array to achieve color images intrinsically.
Useful Resources
Filter Cell Specifications
D = Filter Cell Diameter = 50.6 mm / 1.99 in
T = Total Filter Height = 7.5 mm / 0.29 in
C = Filter Cell Height (Excluding Male Thread) = 5 mm / 0.19 in
M = Male Thread Length = 2.5 mm / 0.09 in
F = USABLE Female Filter Thread Length = Not threaded, so you cannot stack additional filters
S = Glass Substrate Thickness = 1.8 mm / 0.07 in
CA = Clear Aperture = 44 mm / 1.73 in
Other Information
- Country of Manufacture: China
ZWO Premium LRGB Imaging Filter Set - 2" Mounted