CaK 3nm Herschel Solar Wedge with 35mm Prism
Antlia
From ~$349.09
2 stores
In stock
The Antlia CaK 3nm Herschel Solar Wedge replaces the standard prism diagonal at the rear of refractor telescopes to enable imaging of solar granulation and sunspots. The Herschel Wedge design is well known to give sharper, higher-contrast images. The Antlia CaK 393.3nm solar filter uses the most advanced multicoatings to produce a sharp 3nm narrow bandpass, designed to maximize contrast for high-resolution imaging of sun spots, solar surface granulation and other features that are prominent in CaK light. The Antlia Solar Wedge with CaK filter is not recommended for visual observation and is designed for imaging with cameras that have spectral responses well beyond human vision.
Specifications
| Construction | CNC Machined |
| Eyepiece Holder Size | 1.25 in |
| Heat Management | Polycrystalline Ceramic Diffuser with Cooling Vents |
| Maximum Telescope Aperture | 120 in |
| Coatings | Anti-Reflection (AR) Multi-coated |
| Minimum Focal Ratio | f/5.5 |
| Blocking Specification (1200-1500nm) | OD3 (0.1%) |
| Includes | Brightness Control Ring, Solar Finder, Heat Dissipation System |
| Bandpass | 3″ |
| Filter Wavelength | 393.3 |
| Optical design | Herschel Wedge |
| Intended Use | Imaging Only (Not for Visual Observation) |
| Prism Size | 35 mm |
| Filter Type | CaK (Calcium K-Line) |
| Weight | 0.15 lb |
| Blocking Specification (200-1200nm) | OD5 (0.001%) |