Herschel Antlia Solar Imaging Wedge with CaK Filter 3 nm 1.25"

The Herschel Antlia Solar Imaging Wedge, paired with a CaK Filter 3 nm 1.25", is a professional-grade tool engineered for capturing stunning high-resolution photographs of the Sun. Designed specifically for use with refractor telescopes, it supports a maximum aperture of 120 mm and an f-ratio of f/5.5.

Product Details

The Antlia CaK 3 nm 1.25" Filter, seamlessly integrated into the 1.25" nosepiece of the wedge, is a specialized bandpass filter. It selectively allows the transmission of radiation emitted by ionized calcium atoms, enabling users to capture detailed images of solar phenomena such as sunspots, surface granulation, and other solar structures.

The filter is crafted with a multilayer coating on a double-polished, high-temperature-resistant optical glass substrate. Its narrow half-width of ±3 nm for the Ca-K line transmission (393 nm) ensures images with remarkable resolution and contrast. The filter offers exceptional optical efficiency in its transmission band while effectively blocking other spectrum components, achieving optical densities of OD3 and OD5.

Advanced Features

• Enclosed in a CNC-machined housing, the wedge's optics include a shutter mechanism to control light intake.
• Features a ceramic heat dissipation module with additional heat sinks and a solar disc finder.
• Designed exclusively for solar photography. Visual use may cause irreversible eye damage.

Key Features of the Herschel Antlia Wedge with CaK Filter 3 nm 1.25":

• Solar filter designed for capturing Ca-K spectral line images, utilizing a double-polished substrate with enhanced temperature resistance.
• Integrated ceramic heat dissipation system, complete with extra heat sinks and a solar disc finder.
• Adjustable diaphragm for precise light control.
• Prism coated with a multi-layer anti-reflective coating.

Technical Specifications of the Herschel Wedge:

• Design: Herschel wedge with a 35 mm prism.
• Purpose: Astrophotography.
• Compatible Telescopes: Refractors.
• Maximum Permissible Aperture: 120 mm.
• Maximum Allowable Light: f/5.5.
• Camera Mount: M42 (T2) thread / 1.25" nose clip.
• Solar Filter: CaK 3 nm 1.25".
• Energy Dispenser: Ceramic with heat sink.
• Iris Control: Manual adjustment available.
• Filter and Prism Cover: Multi-layer anti-reflective coating.
• Sun Dial Finder: Integrated into the system.
• Housing Technology: CNC.
• Housing Finish: Matte black.

Technical Specifications of the CaK Filter 3 nm 1.25":

• Filter Type: Solar bandpass filter.
• Filter Diameter: 1.25".
• Filter Shape: Round.
• Substrate: Glass with increased temperature resistance.
• Transmitted Bands: Ca-K (393 nm).
• Peak Permeability Location (CWL): 393 nm.
• Half Bandwidth (FWHM): 3 nm.
• Equivalent Optical Density (200 - 1200 nm): OD5.
• Blocking Efficiency (200 - 1200 nm): 99.999%.
• Equivalent Optical Density (1200 - 1500 nm): OD3.
• Blocking Efficiency (1200 - 1500 nm): 99.9%.
• Frame: Anodized black.

Set Components:

• Antlia CaK Filter 3 nm 1.25".
• The Herschel Wedge.
• Filter and Camera Mount.

Guarantee:

The Herschel Antlia Wedge with CaK Filter 3 nm 1.25" comes with a 12-month guarantee.