Antlia Solar Discover 5Å CaK with 5x Barlow

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Frequently bought with this product:

	Antlia Adjustable Aperture Diaphragm for 5Å CaK 1.25''  + £68.00
	Antlia 5x Barlow for 5Å CaK  + £62.00
	Antlia 2x Barlow for 5Å CaK  + £52.00
	Antlia 3x Barlow for 5Å CaK  + £52.00
	Antlia 70mm extension tube for 5Å CaK Solar Discover Assembly  + £30.00
	Antlia 50mm extension tube for Solar Discover 5Å CaK  + £27.00

About this product

Antlia Solar Discover 5Å CaK with 5x Barlow

The Antlia Solar Discover 5Å CaK assembly incorporates a set of light-reducing filters to reduce solar heat ingress for safe operation during solar imaging. It is specifically engineered to enhance imaging contrast for Plages, Light Bridges, features prominent in the CaK 393.3nm line and sunspots.

The Antlia 5Å Ultra Narrow Bandpass Filter is built in, it features a clear aperture of D12mm (B1200) and a wavelength centred on the Calcium II K-Line at 393.3nm. With its ultra-narrow full width at half maximum (FWHM) of 0.5nm, it enables the capture of details in the Chromosphere.

Installation is similar to the Antlia CaK 3nm Solar Herschel Wedge, with the telescope attached at one end and the camera at the other. The metal tube CNC machined from aircraft aluminum and anodised. The filters are assembled within a fully enclosed tube, preventing stray light ingress/egress

Important Notes

With no Barlow lens the telescope must have a focal ratio greater than F7

Optional 2X,3X and 5X Barlow lenses are available that Antlia specifically designed for use with the Solar Discover 5Å CaK assembly .Please refer to the installation diagram.

Optional 50mm and 70mm extension tube are offered by Antlia for better focus. please order them separately if required.

When using with a star diagonal or a  Barlow lens supplied by other manufacturers, the ERF filter must be installed in the correct position for safe operation. Please refer to the installation diagram.

When you are using a telescope with an aperture greater than 100mm, you need to use additional light reduction solutions, such as an ERF filters for safe operation while using Solar Discover 5Å CaK;

Without the extra light reduction solution, the Solar Discover 5Å CaK can only used with REFRACTORS up to 100mm aperture.

About Visual Observation

The bandpass of CaK (393.3 nm) is almost invisible to the human eye, hence, the Antlia Solar Discover 5nm CaK assembly is primarily used for solar imaging and not recommended for visual observation due to the difficulty  many observers experience in visually seeing the CaK line

In addition, the IR coating range of Antlia products is slightly different from the ISO 12312-2 Standard for Solar Viewers, please see the following chart and refer to ISO 12312-2 Standard for Solar Viewers (https://eclipse.aas.org/eye-safety/iso12312-2).

We do not recommend using the Solar Discover 5nm CaK Filter assembly for visual observation.

Warranty: 3-years

Disassembly of the assembly is prohibited and voids warranty.

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