I've been having a "field day" with the recent Optolong L-eXtreme dual band filter. I had already owned the L-Pro and L-eNhance filters and am of course very pleased with them as well. An example comparison can be seen here.
But, the Rosette Nebula really shows off the L-eXtreme's capability and that can be seen below.
And a full resolution TIF verson can be found here.
Although I wouldn't give up my L-Pro and L-eNhance filters, I'm eXtremely pleased with this filter.
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