Quote:
Originally Posted by Atmos
Astrodon 36mm unmounted 3nm Ha.
Over the last 12 months I have been debating within myself as to whether the 3nm or 5nm (pulls in the NII emission) is better. With the 3nm it is more "accurate" as it only lets in the Ha but 5nm may be better visually for the NII. 3nm certainly helps with contrast and imaging 18km from Melbourne CBD.
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Well, the results speak for themselves