Sorry, yes they are unmounted glass filters.
Bill Dean at PlaneWave says it's very unlikely that the optics of the telescope are causing this artifact. Nonetheless, I sent him an image. He...
Hello Colin and Doug. Thanks for the quick response. My optical train has not changed. PlaneWave CDK 17 directly to camera. Camera internal filter...
I have a 18 year old STL 1001E, recently checked out and cleaned by Bill Lynch. Bill also repaired my non- functioning internal filter wheel. When...
Thank you William, This process is similar but also quite different than CCDStack. However, I bought a CCDStack tutorial by Adam Block and am...
William Thank you so much for your time, expertise and effort. It is a relief to know that the camera, although carrying a few scares of old age,...
William In response to your email: The raw calibration darks and bias requested are with the last pack from Chris. Jim
Good Morning/Afternoon Willian The requested files should be coming from Chris's Drop Box within a few hours. I thought you wanted only raw...
William Thanks for catching my mistake. Corrected. Jim
Hi William Let's see if this will work. I have a good friend who has created a Drop Box site just to get you the raw images requested. They are...
OK, CCDStack says pretty much what you all have been saying: increase dithering; increase color subs. So here is an image of M33. It is 15 3min...
OK, thank you, I am off to CCDStack.
Sorry, there were 12 Lum and 3 each RGB
William and Doug Actually this color image was calibrated, bloom removed, registered, normalized, sigma data rejected, separately combined, all at...
Hi William Thank you for your quick response. First, the underexposed red group is my error. I must not have been paying enough attention last...
Attached is a color combination of the above files. So what are the red dots?
Hello Colin Attached are raw .fit files taken this evening of M1. The have not been calibrated, no Auto Dark. One luminance, red, green and blue....
Colin, I like the metaphor and will get some non AutoDark images once the moon goes away. Jim
You guys are my heroes. I have always used AutoDark because I didn't know any better. I learned more today than in quite a while.. I will stop...
Thank you William. I will attempt this exercise once the moon is down. Jim
Separate names with a comma.