Search found 18 matches

by saublestarman
Sun Jul 12, 2020 3:38 pm
Forum: Image Processing Troubleshooting
Topic: Narrowband color cast after wipe
Replies: 2
Views: 559

Re: Narrowband color cast after wipe

Ivo, Fantastic answer, insights and suggestions. Looking forward to following up on your suggestions. Many thanks, Peter P.S. All of the LIGHTs were 10 minute exposures with lots of Amp Glow. Most of it calibrated out but obviously some of it was left behind. I had a terrible time generating FLATs w...
by saublestarman
Sat Jul 11, 2020 6:46 pm
Forum: Image Processing Troubleshooting
Topic: Narrowband color cast after wipe
Replies: 2
Views: 559

Narrowband color cast after wipe

I am just starting to use a LeNhance filter with my QHY294C astrocam. I calibrate with DARKS, BIAS and FLATs with roughly 3 hours of LIGHTs. I stack using intersection mode in DSS. I crop 5 pixels off of all edges to ensure good data. When I wipe I always get a reddish color along the Right Hand Edg...
by saublestarman
Sat Nov 02, 2019 1:01 am
Forum: Image Processing Troubleshooting
Topic: Frustrated...going backwards
Replies: 25
Views: 5804

Re: Frustrated...going backwards

Another way for us to learn a little more is to open one of your FITS files using notepad. The beginning of the file has some text that describes the file. The rest is totally unreadable. If you could post a reply here and simply cut and paste the text from the beginning of the file into your post t...
by saublestarman
Sat Nov 02, 2019 12:51 am
Forum: Image Processing Troubleshooting
Topic: Frustrated...going backwards
Replies: 25
Views: 5804

Re: Frustrated...going backwards

I am an experienced D5300 astroimager and I have seen a few things mentioned here that maybe I can help with. The D5300 is advertised as a 6000 x 4000 image size camera but when the image files are read by Deep Sky Stacker they are 6016 x 4016. This slightly larger file size happens because DSS uses...
by saublestarman
Sun Oct 06, 2019 12:51 am
Forum: Gallery
Topic: Ghost Nebula and the Witch
Replies: 2
Views: 1573

Ghost Nebula and the Witch

On Sept 28th, 2019 I acquired 4 hours of data of the Ghost Nebula. A total of 29 photos. Each photo was a 500 second exposure at ISO200 using a Celestron 8" EdgeHD @ F10. My Nikon D5300 is Ha modified. The mount was a Celestron CGEM. Image calibration was done with master Flats, Bias and Darks. Stac...
by saublestarman
Tue Sep 17, 2019 2:01 am
Forum: Image Processing Troubleshooting
Topic: Using Wipe with Flats
Replies: 2
Views: 1313

Re: Using Wipe with Flats

Ivo,
Thanks for the detailed reply. I will probably stay with the default wipe settings but I will experiment with the narrowband preset to see it's effect.

Startools is a great program

Peter
by saublestarman
Mon Sep 16, 2019 4:33 pm
Forum: Image Processing Troubleshooting
Topic: Using Wipe with Flats
Replies: 2
Views: 1313

Using Wipe with Flats

Sorry if this question has already been answered elsewhere... I always use flats when I calibrate and stack my light frames. Are there any suggestions for how to adjust the wipe module when using flats? Specifically, I wonder if the default Aggressiveness setting of 75% should be significantly reduc...
by saublestarman
Sun Jul 07, 2019 3:03 pm
Forum: Image Processing Troubleshooting
Topic: Why deselect "Align RGB Channels" in DSS
Replies: 3
Views: 1595

Re: Why deselect "Align RGB Channels" in DSS

Ivo, Thanks for clarifying. I have poured thru the forum and the recommendation to NOT align RGB channels when using DSS is widespread. The most obvious is this topic http://forum.startools.org/viewtopic.php?f=10&t=720&p=2915&hilit=align+RGB#p2914 I have written my own programs to calibrate my image...
by saublestarman
Sat Jul 06, 2019 1:28 pm
Forum: Image Processing Troubleshooting
Topic: Why deselect "Align RGB Channels" in DSS
Replies: 3
Views: 1595

Why deselect "Align RGB Channels" in DSS

I have searched the forum looking for some more detail regarding not having DSS align the RGB channels as part of it's stacking efforts. I have always thought that having DSS do this for me would be a little better than doing this manually with the Startools Lens module. I always use DCRAW to prepar...
by saublestarman
Tue Apr 02, 2019 3:24 pm
Forum: Feature Requests
Topic: Resume mode
Replies: 0
Views: 1137

Resume mode

I noticed that the .trk files contained in the startools directory always get set to zero when startools exits. Could you invent a "Resume" mode that could be set when the user exits the program. You could use this mode to keep the .trk files and set a flag that, when the program is next run will pr...