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My Meade DSI came with an IR filter (I dropped it the first time I unscrewed the nose piece - had to buy another) Does this make things redder? Last night when I was attempting the SMC, I got a quite good cluster of nice white stars, but there were a lot of very much smaller red dots, which I took to be very faint stars which the filter had caused to be red. I thought that as the stacking progressed, these would turn white. No such luck. The 50th image looked just like the first. Something I am missing??
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