Search found 43 matches

by donstim
Fri Dec 14, 2018 7:51 am
Forum: Live Stacking
Topic: First time success... well, not quite. Need help
Replies: 2
Views: 445

Re: First time success... well, not quite. Need help

Joe, Have you had any luck in being able to image anything besides bright stars with your Revolution Imager and Sharpcap? I have the same telescope/imager as you (but without Starsense). The key items for me in achieving an image to start working with in Sharpcap (either preview or Live Stacking) ar...
by donstim
Wed Sep 26, 2018 3:04 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Dave, Just a few comments on your excellent tutorial document: 1. You are using SharpCap 3.2, which is a temporary beta version. Nice to be using the most recent version, but I don't typically use beta software. (I will now in this case!) 2. When the instructions say "Apply Display Histogram Stretch...
by donstim
Tue Sep 25, 2018 4:36 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Thanks, Dave. With all the help you have provided already, I hope to at least get a little better. I feel way behind the power curve right now with so much to learn. First there's the equipment - imager and telescope that came as a bundle from Orange County Telescopes (so the imager was basically fr...
by donstim
Tue Sep 25, 2018 2:10 am
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Thanks Dave for posting pointers to your tips on getting good planetary images. I'm sure that will help a lot. Here were my first attempts at Saturn and Jupiter. A little overboard on the sharpening I think, but I was trying to find at least some level of detail. There are major differences between ...
by donstim
Mon Sep 24, 2018 9:19 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Dave, Yes, that would be great if you could write up the notes and put them into the tutorial forum. Feel free to use my image and and who's to blame for taking it! I would be glad to go through and give a test use to the document when it is uploaded. Another very basic question -- You said you used...
by donstim
Mon Sep 24, 2018 6:47 am
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Dave, Well, that's way beyond where I ever expect to get to! I am more interested in EAA and saving good images as photos than getting deeply into actual astrophotography. One of the main lessons I think you are trying to convey to me is to really pay attention to the histogram to get the black/whit...
by donstim
Fri Sep 21, 2018 9:18 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

I was referring to your M27 image here: https://forums.sharpcap.co.uk/viewtopic.php?t=297&sid=2a146e59dcc4c8ae776a8ef6b6b109cb I didn't realize SharpCap has a reticule. I will have to start using that. For alignment, I start with using the GoTo function for the aligned scope, then center the object ...
by donstim
Fri Sep 21, 2018 6:11 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Wow. I don't know how to express my gratitude. Thank you so much. I had just started to play with this image in GIMP as well, but was only using the brightness/contrast tool and curves and was not satisfied with my result. I had just resigned myself to studying the GIMP user manual to learn how to u...
by donstim
Fri Sep 21, 2018 1:45 am
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

Here are a couple of other images of M27 that I saved the same night using different black level and gamma settings. I am having trouble choosing which one is "best." I tend to like the image with the darker background, but then I'm not sure it shows as much of the fainter parts of the nebula.
by donstim
Thu Sep 20, 2018 8:31 pm
Forum: Live Stacking
Topic: Live Stacking Beginner help
Replies: 24
Views: 3081

Re: Live Stacking Beginner help

I am saving the stack (not an individual frame) as a png file. So it should correspond with the histogram. Where i am confused is that the camera control brightness affects the black level and gamma I choose in the histogram, yet the camera control brightness is not included in the saved png. So I m...