I think you have found my problem..
The filter set is all parfocal (astronomik LRGB set) and I have had good success with it a couple of months back, but I'm using clear where as before (a couple of months ago when I was doing LRGB imaging) I was using the L instead of Clear.
The rest of the variations might be explained by viewing once I get it in focus for the L instead of Clear.
Thanks
One question - IR blocking... I don't understand why that is required? One of the things I've liked about the ST7 is it's sensitivity in the IR....
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