Daystar SR 127mm Dedicated Solar Telescope 0.5Å… PE Grade
The professional research-gradeDaystar Filters SolaREDi 127mm f/21 0.5Å H-Alpha Solar Telescopecombines a full-aperture solar filter with the same electronic tuning system used in their Quantum-series filters to produce a powerful and effective dedicated solar-viewing telescope. Tuned specifically to the 0.5Å bandpass, this filter is all about surface detail. By excluding more wing-shifted light, surface detail contrast is enhanced, with features like flares, emerging flux regions, Ellerman bombs, spicules, filaments, field transition arches, and the chromospheric network becoming more clearly visible. Prominences will not appear large but will still be visible. This version of the SolaREDi is designed for professional research-grade users who require tight tolerances and improved quality. To accomplish this, Daystar improves homogeneity and on-band transmittance values across the substrate surface, so these filters require additional quality control steps, as well as additional fabrication and testing times.
The SolaREDi comes calibrated for the H-alpha wavelength at 6562.8Å and, using the electronic tuning system, which is accurate to 0.01Å, the wavelength can be offset as much as 1.0Å in either direction for Doppler shift compensation and to highlight specific areas with a digital display showing the exact tuned wavelength. The SolaREDi is equipped with a sturdy 2" steeltrack rack-and-pinion focuser that is designed to carry heavier loads without flexing and a Vixen-style dovetail mounting ring set that makes it compatible with a wide range of mounts on the market today.