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  4. 1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter (SVBONY Optical Products Company)
1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter-CLS filter 1.25 inch
1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter-CLS filter 2.0 inch
1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter-SVBONY Optical Products Company

1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter
SVBONY Optical Products Company

About This Product

Using high-quality optical glass, the surface precision of the filter is extremely high, allowing you to observe and photograph with high image quality. By cutting out the emission lines from mercury and sodium lamps, which cause light pollution, the sky becomes clearer and more stars can be seen clearly. By transmitting emission lines such as OIII and Hα, it is possible to photograph nebulas with high contrast. The most common effect of light pollution is that the night sky becomes brighter, making it difficult to see the stars. In a natural night sky, thousands of stars and the Milky Way can be seen with the naked eye when there is no moonlight. However, in areas with severe light pollution, not only can the Milky Way not be seen at all, but the number of stars that can be seen with the naked eye is extremely limited. CLS filter stands for "CITY LIGHT SUPPRESSION" and is a filter that illuminates the night sky and suppresses light pollution that makes it difficult to see stars. Specifically, it cuts the wavelengths emitted by mercury lamps and sodium lamps, which are often used in street lights.

■Advantages

・Removes light pollution and allows light from celestial bodies to pass through when observing and photographing nebulas, star clusters, comets, etc. ・Because high-quality optical glass is used, the surface precision of the filter is extremely high, allowing observation and photography with high image quality. - Cuts out light pollution, making the sky clearer and increasing the number of stars that can be clearly seen. ・Stars near the horizon will also be visible ・By cutting specific wavelengths, the light in the Hα region increases relatively, making it possible to capture red diffused nebulae.

■Compatible models

Canon 7D Mark II, 80D/800D, 77D/70D/760D/750D/700D 650D/600D, 550D/500D, 400D, 100D/1100D/1200D/1300D, Canon EOS 60D Glass material thickness: 1.85mm By cutting off specific wavelengths, the light in the Hα region increases relatively, making it possible to capture red diffused nebulae.

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    1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter

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2 Models of 1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Weight Material Screw thread Type Glass material thickness
1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter-Part Number-CLS filter 1.25 inch

CLS filter 1.25 inch

$ 23.52〜

5.2g/0.18oz

Optical glass and aluminum alloy

M28.5*0.6mm

CLS filter

1.85mm

1.25 inch light pollution cut filter Astronomical observation Astrophotography CLS filter-Part Number-CLS filter 2.0 inch

CLS filter 2.0 inch

$ 41.25〜

5.2g/0.18oz

Optical glass and aluminum alloy

M48*0.75mm

CLS filter

1.85mm

Click on the part number for more information about each product

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