Daystar

.4SR127PE

Daystar SR 127mm Dedicated Solar Telescope 0.4Å… PE Grade

The professional research-grade Daystar Filters SolaREDi 127mm f/21 0.4Å H-Alpha Solar Telescope combines 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 0.4Å bandpass, it is a chromosphere filter that presents views with the soft appearance of "peach fuzz" and rich and full subtle surface detail—different than any other bandpass. Prominences will be harder to see, as their fast moving wing-shifted light is excluded. 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.

Specs
Type H-Alpha Solar Telescope;Achromat
Focal Lenght 2667mm
Focal Ratio f/21
Optical Diameter 127mm
Optical Tube Weight 13.6lbs
Bandpass 0.4Å
Camera/Eyepiece Connection 2"
Dovetail Vixen style
Mount No

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