Hi Tyler, On 24 Mar 2010, at 10:46, Tyler Allred wrote:
Patrick, I agree that the focus looks good, and you picked up some nice detail in the arms. The core only looks blown out because you keep letting your software decide how to stretch the data. If you recall, I have chastised you several times for this offense :)
Yep, and I still have the welts to prove it. :) Actually I stretched the heck out of each image and, as you suspected, the resultant images were very dark. But when I stacked the dark images the final product was still burned out in the core. I'm guessing part of the problem is that with only 2.5 minutes of data there's not much there to work with (remember I shot the pictures just to check focus). A few questions: 1) Do you stretch the individual images or only the image you end up with after stacking? 2) And, for that matter, do you stretch before applying the flat and dark? 3) Would I be better off shooting say 20 one minute exposures or 40 thirty second exposures? 4) Maybe one of these days you can do an imaging session at a SPOC star party? Cheers, patrick