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  4. Hα 7nm filter (Cytron Japan Co., Ltd.)
Hα 7nm filter-Hα 7nm filter
Hα 7nm filter-Cytron Japan Co., Ltd.

Hα 7nm filter
Cytron Japan Co., Ltd.

About This Product

Cytron Hα 7nm Filter (H Alpha 7nm Filter) is an Hα filter designed to transmit only the Hα emission line emitted by hydrogen gas. With a half-value width of 7nm, it can be used for narrowband imaging. Product features

■Cytron Japan original “narrow band filter”

By transmitting only the Hα (656.3nm) emission line, this filter can capture the hydrogen gas that is abundant in space with good contrast. The half-width is 7nm, which is highly versatile, and the design has a good balance between good image quality and exposure time. In addition, wavelengths other than Hα are cut from 300nm to 1,150nm, so there is no need to use a separate UV/IR cut filter.

■Reliable domestic quality. Adopts synthetic quartz glass

Synthetic quartz glass is used for the substrate. It is stronger and has better heat resistance than commonly used optical glass, so distortion during coating is smaller than usual, and it has excellent deposition stability and surface precision.

■Highly versatile 48mm American size diameter

The highly versatile filter thread diameter is 48mm and American size, so it can be used with many telescopes.

  • Product

    Hα 7nm filter

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1 Models of Hα 7nm filter

Image Part Number Price (excluding tax) Filter size
Hα 7nm filter-Part Number-Hα 7nm filter

Hα 7nm filter

Available upon quote

48mm, American size

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About Company Handling This Product

Cytron Japan Co., Ltd.

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Optical Filters　Cytron Japan Co., Ltd.
Cytron Japan Co., Ltd.

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