Tag: etalon
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(continued from part 2) FWHM At the FWHM, or the 42.5%T point: The bandpass is measured in a single system at 0.7A. In DS system the bandpass is the multiplication of the 2 interference filters, 0.7A x 0.7A = 0.49A. To be specific: The new width of the Etalon T curve is moved by a multiple of the [...]
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Double Stack vs Single Stack There are advantages and disadvantages to adding another filter to your solar telescope.  This is called double stacking.  This video will help you to decide weather you want to double stack your telescope or not. Transcript The 152 along with the LS100 and [...]