Search found 8 matches
- Wed Jul 01, 2015 5:38 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
Ha! Hadn't noticed this went to a second page! This is an 8 inch F4.5 dob on a Celestron CGEM mount. Mediocre tracking. Have to work on auto guiding it some day if it will take the weight. Thinking of getting a Baader MPCC coma corrector to clean up the corners. May have some flats around I can use....
- Mon Jun 29, 2015 4:39 pm
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
Roland,
I have uploaded 10 of the CR2s, zipped, about 223mb. Please download them and see what you get.
https://drive.google.com/open?id=0B7HOe ... authuser=0
Thanks,
Ken
I have uploaded 10 of the CR2s, zipped, about 223mb. Please download them and see what you get.
https://drive.google.com/open?id=0B7HOe ... authuser=0
Thanks,
Ken
- Sun Jun 28, 2015 5:31 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
dcraw -4 -o 0 -D -t 0 -k 0 -H 1 -T my_raw_files Ken. Try the options above. This will create 16bit integer CFA monochrome no flip/rotation tiff files. So no matter what the camera rotation all files will be the same orientation. Stack in DSS. This should produce an RGB stack. Ignore the white balan...
- Sat Jun 27, 2015 5:01 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
For grins, I had DSS use the CR2 files and told it to use the camera WB. I selected No Background Calibration. I got pretty much the same results though this time I pretty much took all the defaults and skipped the fancier stuff like HDR and Magic etc. Pretty much processed like this in another thre...
- Sat Jun 27, 2015 4:11 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
Hi Rowland, It's a factory camera, no modifications at all. The images were taken looking to the south, directly toward the light pollution of Colorado Springs. I am really impressed with StarTools ability to deal with that light pollution. If it had been modified to have the IR filter removed, I wo...
- Fri Jun 26, 2015 7:08 pm
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
Ok, put the stacked, not white balanced FTS file on Google Drive for anyone who wants to play with it.
https://drive.google.com/file/d/0B7HOeR ... sp=sharing
The image on this page looks a lot like the color in mine.
http://apod.nasa.gov/apod/ap140527.html
Ken
https://drive.google.com/file/d/0B7HOeR ... sp=sharing
The image on this page looks a lot like the color in mine.
http://apod.nasa.gov/apod/ap140527.html
Ken
- Fri Jun 26, 2015 4:33 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
Re: M17 Color
P.S. Suppose I should have included it was done with a Canon T2i. I ran the CR2s through DCRaw using the command line I found here in the forums to remove the white balance. I found I also had to add an argument so it wouldn't use the rotation information from the camera. DSS doesn't like rotated fi...
- Fri Jun 26, 2015 4:29 am
- Forum: General Discussion
- Topic: M17 Color
- Replies: 17
- Views: 20628
M17 Color
Hi Folks, Also a newbie but have been reprocessing old data like mad and learning along the way. I processed an M17 image and have interesting colors. I suspect that StarTools actually did the correctly but everyone else's is mostly if not all red. Mine more resembles some of the images that were do...