Search found 1427 matches

by turfpit
Thu Jun 17, 2021 8:15 am
Forum: How do I?
Topic: Creating Flats with Solar Images
Replies: 5
Views: 62

Re: Creating Flats with Solar Images

Sandcomp

viewtopic.php?f=23&t=1376. Some ideas for generating flat frames - using a cheap tracing panel or home made with an EL panel (off eBay).

You could try without flat frames as a starter.

Dave
by turfpit
Wed Jun 16, 2021 7:06 pm
Forum: How do I?
Topic: Creating Flats with Solar Images
Replies: 5
Views: 62

Re: Creating Flats with Solar Images

Sandcomp Maybe I have the exposure set too high for that flat which will be different from the exposure of the Sun Use the gain & exposure camera controls to set the the histogram something like the image I have posted. Expect the image capture exposure and flat frame capture exposure to be diff...
by turfpit
Wed Jun 16, 2021 5:22 pm
Forum: How do I?
Topic: Creating Flats with Solar Images
Replies: 5
Views: 62

Re: Creating Flats with Solar Images

sandcomp My flat frames for a mono camera look something like this with the histogram somewhere around 50%. mono-flat.JPG The usual way to acquire a solar image is to capture a video in SER format (using the fastest fps possible to beat atmospheric conditions) and then stack with a program such as A...
by turfpit
Tue Jun 15, 2021 7:07 am
Forum: Gallery
Topic: Sh2-86 in Ha
Replies: 18
Views: 380

Re: Sh2-86 in Ha

A good image there Brian. You must have spent many hours on the capture and experimenting with processing.

Dave
by turfpit
Sat Jun 12, 2021 12:30 pm
Forum: Gallery
Topic: Sh2-86 in Ha
Replies: 18
Views: 380

Re: Sh2-86 in Ha

Brian

Longer integration is certainly bringing improvement. The star reduction seems to be doing a good job.

Dave
by turfpit
Tue Jun 08, 2021 8:47 pm
Forum: Feature Suggestions
Topic: Prevent people from "liking" their own posts
Replies: 4
Views: 97

Re: Prevent people from "liking" their own posts

I have 'liked' a couple of my own - when trying to view the 'likes' on a mobile (easily done with the small interface). I did get on a laptop as soon as possible and 'unlike' them.

Dave
by turfpit
Wed May 26, 2021 10:00 pm
Forum: Gallery
Topic: Clavius region 81% waxing moon
Replies: 7
Views: 285

Re: Clavius region 81% waxing moon

Tim
The second image looks more natural.
That comment makes the hours invested in developing, testing and refining the above process worthwhile. Thanks.

Dave
by turfpit
Wed May 26, 2021 10:07 am
Forum: Gallery
Topic: Clavius region 81% waxing moon
Replies: 7
Views: 285

Re: Clavius region 81% waxing moon

Tim Do you know how much difference to the final result is made by drizzling? By comparing drizzle v no drizzle, I think the drizzle 1.5 looks 'better'. A bit subjective I know. I have tried drizzle 3 and that does not work well. The jury is out on my 2.5x Barlow. I have never had good results with ...
by turfpit
Mon May 24, 2021 7:08 pm
Forum: Gallery
Topic: Clavius region 81% waxing moon
Replies: 7
Views: 285

Re: Clavius region 81% waxing moon

Cheers Menno. Thanks for the link, the software is well documented and I will have a look at it after doing some reading up on deconvolution.

Dave
by turfpit
Sun May 23, 2021 3:58 pm
Forum: Gallery
Topic: High resolution 'lucky' images of M3, M13 and M92 cores
Replies: 3
Views: 194

Re: High resolution 'lucky' images of M3, M13 and M92 cores

Nice work Tim. It would be interesting to see just how far 'deep sky' lucky imaging could be taken. With say a large dobsonian - 14-20 inch, a sensitive CMOS camera and at F 4.0 or less Have a look at https://www.cloudynights.com/topic/533802-m64-2400-x-1-second-16/ see post #20. Emil author of Auto...