Search found 25 matches

by descott12
Mon Feb 04, 2019 2:19 am
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

But it seems like you got good results with whatever settings you used to create your flats, so I'd be interested to learn about the settings you used. Thanks. Hi Robin, I made some new flats tonight and they worked well just like last time. Here is a screenshot of all the settings. Definitely had ...
by descott12
Sun Feb 03, 2019 1:43 am
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

Hi Robin, Hmmm...Beginners luck for sure! I know I created a mono flat withOUT the bias checkbox checked. I think it is not checked by default. Brightness was set to 12. I adjusted the exposure to get the flat's histogram centered around 50%. I can't remember where it was but it was in the ms range....
by descott12
Thu Jan 31, 2019 11:43 pm
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

Hi Robin,
I have learned so much since I started this just 3 months ago and it is all because of people like you on these forums. Definitely want to give back as much as I can. BTW - I ordered the 50 mm Lunt. Looking forward to its arrival. Thanks for your help on that.
by descott12
Thu Jan 31, 2019 7:07 pm
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

Yes, it did. SharpCap is really great. Robin, I am also a software developer. I run a one-man show (www.raptormed.com) like I think you probably do or mostly do with SharpCap so I really appreciate what you have done. Great job. You have made astronomy accessible to so many that would otherwise neve...
by descott12
Thu Jan 31, 2019 2:29 am
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

Huge success with flats to eliminate vignetting! I thought I would post this as I am sure others will find it useful. I captured a few flats at around dusk and restacked a few things for a test. The results were nothing short of amazing. Check out he Rosette Nebula. Both stacked for 2 minutes, 10 se...
by descott12
Wed Jan 30, 2019 8:38 am
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Re: Dealing with vignetting

Wicket, Thanks for the reply. 1. The tip about the brightness is great. That is the one control that I haven't messed with and have sort of left it at the default. That will probably help alot as it seems like an over-brightness problem is really exacerbating the vignetting. 2. Yes, I was aware of w...
by descott12
Wed Jan 30, 2019 2:15 am
Forum: How do I?
Topic: Dealing with vignetting
Replies: 13
Views: 472

Dealing with vignetting

Hello, I seem to have a pretty severe vignetting problem that I don't recall having a few weeks ago. However, I am getting more adept at EAA and using SharpCap so it may simply be that I just notice things more now. In either case, the first image is the problem on full display and the second is a s...
by descott12
Wed Jan 23, 2019 2:25 am
Forum: How do I?
Topic: Creating dark frames
Replies: 7
Views: 262

Re: Creating dark frames

Hey Dave, Thanks for the responses. Those screenshots were sort of what I was expecting to see. Regarding the Hyperstar - should that even matter since theoretically, there should be no source of light at all? In fact, I was thinking I could just take the darks with camera not even hooked up to the ...
by descott12
Tue Jan 22, 2019 7:27 pm
Forum: How do I?
Topic: Creating dark frames
Replies: 7
Views: 262

Re: Creating dark frames

Hi Robin,
Thanks for the very informative reply. Makes alot of sense.
by descott12
Tue Jan 22, 2019 2:28 am
Forum: How do I?
Topic: Creating dark frames
Replies: 7
Views: 262

Creating dark frames

I just started experimenting with creating some dark frames to see if they would help during EAA. I am using an ASI 294 MC Pro with the cooler on. I created one master dark (average of 10 frames, exp 10.3 secs, gain 216, full resolution, 1x1 binning, as this was a simple test, I did not record the t...