Nine Eta Carina there. At first I was a fan of not using the 350D noise reduction, but rather taking some DFs and subtracting them in IRIS but last night I used the in camera N/R again and found the results considerably better, also when using my 50MM lens for some reason the darks didnt work under Iris, because the instructions say to optomise the darks draw a small rectangle in the light image where theres no stars, but in the 50MM lens shot there were no star free areas, and I was left with green dots all over when I did the Iris processing.
Scott
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