Brand: Chroma Technology

Chroma Technology 3nm/5nm H-beta Filters (27004/27005)

Brand: Chroma Technology

Chroma Technology 3nm/5nm H-beta Filters (27004/27005)

Special Order
$442.00 USD

Bandwidth Option

3nm (CT-27004) 5nm (CT-27005)

Filter Size

1.25" Mounted (-1.25M) 2" Mounted (-2M) 31mm Unmounted (-31D) 36mm Unmounted (-36D) 50mm Unmounted (-50D) 50x50mm Unmounted (-50X50)

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Product Description

H-beta filters are also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrow-band filter is required to separate H-beta from nearby blue and green spectral lines. Although weaker than the H-alpha line, this is often used for visual detection as the longer red wavelengths of H-alpha are difficult to detect by eye.

Specifications

3nm Transmission Curve

3nm Transmission

5nm Transmission Curve

5nm Transmission

Note: All transmission and blocking (OD) data are actual, measured spectra of representative production lots. Spectra varies slightly from lot to lot. Optical density values in excess of 6 may appear noisy because such evaluations push the resolution limit of low light level measurements.

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