Astrodon 6nm HA Filter vs Baader 3.5nm HA Filter

Comparison between Hydrogen Alpha Filters

Background image is 5x 10 min exposures ISO 3200 (averaged together) with the astrodon HA Filter with target high in the sky on a 8/10 night - with mouse over changes to 7x 10 min exposures ISO 6400 (averaged together) with target low in the sky with a 6/10 night. So not exactly a fair test but a good indication that if you were hoping to get a much better image you would probably be better spending the money on something else - will update on a better night

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