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The Daystar Filters SoliRedi 127mm f/21 H-Alpha Solar Telescope combines a full-aperture solar filter and 32mm blocking filter, with the same electronic tuning system used in their Quantum-series filters, to produce a dedicated solar-viewing telescope. Tuned specifically to the 0.7Å bandpass, it reveals prominences, a detail of the chromosphere projected against the blackness of space, in high contrast; and under the right conditions, surface texture. Through a 0.7Å filter, prominences appear larger than when viewed with narrower bandwidth filters.
This version of the SoliRedi comes calibrated for the H-alpha wavelength at 6562.8Å and using the electronic tuning system, which is accurate to 0.1Å, 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 SoliRedi comes equipped with a 2" Crayford-style focuser, and Vixen-style dovetail mounting ring set to be used on compatible mount heads.
f/21 focal ratio
2667mm focal length
Doublet refractor style-optical configuration
Fully multi-coated optics
Integrated 2-element Barlow system produces a longer effective focal length than the optical tube length
2" Crayford-style focuser allows for precision focusing without backlash
1.25" reducer adapter to use smaller eyepieces
Permanent solar-viewing filter calibrated for the Hydrogen-alpha wavelength at 6562.8Å
Tuned specifically for 0.7Å bandwidth to reveal prominences, and under the right conditions, surface texture
Prominences appear larger than when viewed with narrower bandwidth filters
32mm clear aperture blocking filter
Precision electronic tuning system
Digital display shows tuning
Accurate to 0.01Å in center wavelength
Enables wavelength to be offset as much as 1.0Å in either direction for Doppler shift compensation and to highlight specific areas
Runs on 12 VDC power with included AC adapter
OTA only, requires mount and tripod for proper use
Includes mounting ring set with Vixen-style dovetail plate
In the Box
DayStar Filters SoliRedi 127mm f/21 H-Alpha Solar Telescope (0.7Å SE Grade, OTA Only)