Quote:
Originally Posted by Peter Ward
Thanks for your input guys. There are some doubts over SII filter I am using
as it simply isn't passing much SII !
There is a sheer lack of data there, but I'll have a better unstanding of what's going on next month when the filter gets tested....
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For what its worth my Astrodon 5nm S11 filter does not pass on much either. It seems S11 is generally the weakest of the 3 NB filters by a long way.
Greg.