Ryan Posted October 17 Share Posted October 17 (edited) Testing Altair new TRI-RGB filter I Like what I'm seeing in my Bortle 8 skies Cocoon nebula wide field 135mm F4 lens AA 26M 18x300s I can't see any halos but if you need more info about the filter message Ian or nick Edited October 17 by Ryan 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted October 17 Share Posted October 17 Might work better on a colour camera Ryan. Quote Link to comment Share on other sites More sharing options...
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