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Review Summary
The Coronado P.S.T. CaK is a truly remarkable telescope linking two of Coronado's most recent technological breakthroughs. By combining the optical design of the price friendly P.S.T. with the Calcium K line filters of the SolarMax 70 CaK, Coronado is again making solar discovery a real and attainable aspect of Astronomy.
The unique CaK filter isolates a layer of the Sun that is below and slightly cooler than the layer viewed with a Coronado Hydrogen Alpha filter.
The transmission line is centered at 393.4 nanometers and is isolated using thermally stable interference filters.
Given that this telescope has a much smaller aperture than its bigger brother, the SolarMax 70 CaK, you can anticipate a drop in resolution but not in contrast, safety, or quality.
The magnificent super granulation cells that gather and strengthen in this layer of the Chromosphere may not be visible to all, as most humans eyes through the process of aging, are not particularly sensitive to this wavelength. The primary purpose of any CaK instrument is for imaging.
Coronado does not guarantee the performance of any imaging equipment being used in a prime focus position, as the effect is very subtle and will appear more pronounced in imaging.
All equipment will work in a focal setup using the appropriate adaptors. These are the same adaptors that you use at night and, at this time, are not offered by Coronado. If your current imaging equipment will not work at prime focus and can't be used in a a focal setup.
Coronado recommends the purchase of one of the Meade Electronic Eyepiece systems, The Deep Space Imager or the Lunar Planetary Imager. A computer is required to operate these. The P.S.T. CaK will work with the Malta Mount and features a built in finder scope.
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