Antlia Solar Discover 3 nm CaK all astro filters opinie

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Antlia Solar Discover 3 nm CaK is a specialized bandpass filter that transmits radiation emitted by ionized calcium atoms. With its help, it is possible to obtain the most detailed images of sunspots, surface granulations and many other structures occurring on the Sun.

The passband in the CaK line (393 nm) of the Antlia Solar Discover 3 nm CaK filter has a half-width of just 3 nm, which allows for obtaining images that stand out with excellent resolution and contrast. The high optical efficiency in the passband is combined with the ability to almost completely block other spectral components in accordance with the requirements of the ISO 12312-2 safety standard.

Note! The Antlia Solar Discover 3 nm CaK filter is designed to work only with ultra-sensitive astronomical cameras and is not suitable for visual observations. Using the filter with angle attachments requires the use of an additional ERF filter.

Key Features of the Antlia Solar Discover 3nm CaK Filter

• solar filter designed for photography in the CaK spectral line
• double mounting adapter for 1.25" and 2" pulleys
• durable oxidized aluminum frame

Technical parameters

• filter type: bandpass filter, solar
• mounting adapter: 1.25" / 2"
• transmitted bands: CaK (393 nm)
• half-width of the passband: 3 nm
• transmittance 380 - 780 nm: 0.00061% - 0.0032%
• UVB transmittance (280 - 315 nm): <0.0032%
• UVA transmittance (315 - 380 nm): <0.0032%
• IR transmittance (780 - 1700 nm): <3%
• frame: black, anodized

Set components

• Antlia Solar Discover 3 nm CaK filter

Guarantee

36 months