According to Daystar the best optical system for their filter is one that does not require use of the red rejection filter, this comes directly from the DayStar people. They sell the rejection filter to protect optical assemblies that would be harmed by the sun.
I have found nothing on the internet the that suggests putting a coronado filter over the objective will improve solar viewing. Or any other H-Alpha filter system other than double stacking the coronado. They are different animals, for instance you do not lose detail with higher magnification provided seeing conditions allow it, with the Daystar. Erik The PST is very sensitive to magnification as well as eyepiece
quality. Prominences can disappear entirely if the magnification is pushed too high, or a low-contrast eyepiece is used. This is independant of etalon tuning.
Go a little lower in power than you normally would if the prominences seem a bit "iffy", and don't be hesitant to try different eyepieces.
On 6/26/10, Canopus56 <canopus56@yahoo.com> wrote:
It seemed to reduce the small PST's ability to focus in prominence's on the solar limb.
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