ho_co Posted March 11, 2010 Share #21 Posted March 11, 2010 Advertisement (gone after registration) Malcolm-- Check out the photo at APOD: 2010 March 11 - Yukon Aurora with Star Trails. Now there's a way around the Fabry-Perot rings! Just put the pole-star at image center and record star trails, and no one will notice the interference pattern. Link to post Share on other sites More sharing options...
Advertisement Posted March 11, 2010 Posted March 11, 2010 Hi ho_co, Take a look here lens artifact with 2.8 28mm. I'm sure you'll find what you were looking for!
braeside Posted March 15, 2010 Share #22 Posted March 15, 2010 Was the test with the laser pointer done with or without a UV/IR cut filter on the lens? [Just curious if the effect is caused by filter or filter and sensor in combination or sensor alone]. Link to post Share on other sites More sharing options...
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