Posted 10 September 2013 - 03:51 AM
Anyway, this is 23X300sec at ISO 800 with the AT8IN.
Posted 10 September 2013 - 05:32 AM
Posted 10 September 2013 - 10:54 AM
I really like the detail in the reflection nebulas. However, the halos kind of remind me of a collimation star test.
Posted 10 September 2013 - 03:54 PM
Posted 10 September 2013 - 05:15 PM
Something has been wrong with all my images lately. The entire left side will look awful. That was the bottom of this image and I cropped it out. I just took 85 300sec subs of the Bubble last night (stacked 78 of them) and it looks really clean in areas and awful in other areas. I'm starting to suspect something in DSS. One thing I've been noticing thats kinda weird is I always take 30 flats and DSS always starts out with those and says "xxxx 1 of 21".
I'm extremely tired right now after the all-nighter and pretty put out with it all at the moment. After I get woke up and get something in my belly I will look into DSS a little more. I may need to go to another stacking program.
Posted 11 September 2013 - 12:36 AM
I use DSS too with good results. Maybe you should take a look at just your darks or flats. Maybe something is wrong with those. Could you post te raw data for this image and the darks and flats in dropbox or something? Really curious what might be the problem.
Posted 11 September 2013 - 08:14 AM
I ran my Bubble nebula data last night in DSS and it seemed to be fine. I took a lot more subs and it seemed to be much better. The heat we've been having lately is the root of my problem I believe. I need a lot more subs when the sensor temps are 30*+ C.
Cooler weather is on the way though so I'll try to get by a little longer with my DSLR. Maybe by next summer I can get a cooled mono CCD.
Posted 11 September 2013 - 10:52 AM
Posted 11 September 2013 - 11:02 AM
Posted 11 September 2013 - 11:21 AM
Posted 11 September 2013 - 11:25 AM
Posted 11 September 2013 - 11:55 AM
Madratter, I personally like the diffraction spikes in my images but these are over the top. I replaced the spider in my dob with a 3 vane curved spider for observing but I think the spikes look good in pictures. I can do completely without those halos though.
Posted 11 September 2013 - 04:02 PM
Posted 11 September 2013 - 04:50 PM
Posted 12 September 2013 - 12:35 AM
Agree to what's said above. New version looks much better. Though I'd like to see a full sieze version too. Image artifacts can never be entirely removed. Unlesss you want to give up large part of the actual image or spend countless hours in processing. My opinion is that you sould do as little as possible to your image. Often I like a noisy image with many details much better than an overcooked image as smooth a s a babyskin but lacking all detail. The trick is to find the perfect balance in this. It looks like you found that balance in your second image.
Posted 12 September 2013 - 10:00 AM
Posted 12 September 2013 - 11:03 AM
Second version is a big iprovement. The nebulae look really natural in this version. Great job!
Posted 12 September 2013 - 11:18 AM