Search found 64 matches

by Topographic
Tue Mar 28, 2023 10:27 am
Forum: Gallery
Topic: NGC1499 California Nebula
Replies: 2
Views: 1355

Re: NGC1499 California Nebula

Cool. Kind of tiny though. :D Is this one of the HSO maps like the filename says? That's a really busy star field around that, huh? I will try to make it bigger. I can't find the log with the details on it, might have overwritten it by accident. I like the star fields like this, I haven't quite wor...
by Topographic
Sun Mar 26, 2023 10:40 am
Forum: Gallery
Topic: NGC1499 California Nebula
Replies: 2
Views: 1355

NGC1499 California Nebula

120 x 60" exposures in each of Astronmik MaxFr 12nm filters. ZWO183mm and Samyang 135mm F2. The colour is an SHO preset (adjusted). Captured in APT using PHD2 and stacked in Sirilic.
by Topographic
Thu Mar 09, 2023 9:52 pm
Forum: Image Processing Troubleshooting
Topic: M42 - the Good, the Bad and the Ugly
Replies: 13
Views: 28104

Re: M42 - the Good, the Bad and the Ugly

Autofocus is one thing I can't do without, mind you my eyesight is poor, not great with specs either. I use the L2 which has been good for me in Bortle 3/4 skies. I think the Nebula is good, I would like to see more of the dust that virtually surrounds it, the sky seems a bit too black to me. Part o...
by Topographic
Thu Mar 09, 2023 9:40 pm
Forum: Feature Requests
Topic: HDR 'Do' button
Replies: 0
Views: 38057

HDR 'Do' button

When I use HDR it defaults to medium, I use high. Could a 'Do' button be put in place to enable a choice before the system starts its calculations?
by Topographic
Thu Mar 09, 2023 8:48 pm
Forum: Gallery
Topic: Bubble Nebula NGC7635.
Replies: 3
Views: 1477

Re: Bubble Nebula NGC7635.

Mike Thanks for that. I tend to err on the more muted side for colours. The acquiistion was RASA8 ZWO183MC and L2 Astronomik lum filter. https://www.astrobin.com/u2s5p7/B/ for full resolution version. Spec for PC is Ryzen 9 5950x, nvidia 4070i graphics and 128gb of RAM. Should keep me going for a lo...
by Topographic
Thu Mar 09, 2023 4:22 pm
Forum: Gallery
Topic: Bubble Nebula NGC7635.
Replies: 3
Views: 1477

Bubble Nebula NGC7635.

This is a re-process after acquiring a much more powerful computer and 4K screen. I was able to use the higher quality settings without having crashes or making (and) eating my lunch whilst waiting for some parts of the process to complete. I Find using -RGB Ratio, CIELab Luminance Retention- gives ...
by Topographic
Tue Jan 17, 2023 3:10 pm
Forum: Gallery
Topic: Startools V1.8 Spatially Variant PSF Deconvolution
Replies: 11
Views: 4210

Re: Startools V1.8 Spatially Variant PSF Deconvolution

Startrek wrote: Tue Jan 17, 2023 9:30 am Hi Ivo,
Thanks, yes the results speak for themselves
No matter how hard you try with alternatives , true high fidelity signal processing will always shine.

Clear Skies
Martin
Martin

Great job!

A nice reminder.

David
by Topographic
Mon Dec 12, 2022 7:13 pm
Forum: Gallery
Topic: Two colour variations of NGC6888
Replies: 15
Views: 3050

Re: Two colour variations of NGC6888

Neat! :thumbsup: Make 'em bigger, though! Should be able to retain modest resolution and export to about 500kb size or so. What were the alterations in Gimp? Selective mask? I see the surrounding Ha has been changed to deep red, but the Crescent itself seems to be retaining the H(H+O) for that emis...
by Topographic
Mon Dec 12, 2022 6:34 pm
Forum: Gallery
Topic: Two colour variations of NGC6888
Replies: 15
Views: 3050

Two colour variations of NGC6888

Attached are two different colour versions of the same image. The brown colour is my original version using the H(H+O)O preset. The other, redder version has been adjusted using gimp. I am interested to hear what people think. particularly from Ivo and the way colour is handled by other programs com...
by Topographic
Wed Feb 09, 2022 12:54 pm
Forum: Gallery
Topic: M42 and not much surrounding dust
Replies: 4
Views: 1607

Re: M42 and not much surrounding dust

Mike Nice image, I think that trying to eliminate every bit of green on the Max RGB screen can lead to a lot of slider tweaking. I went down the layering mode to expose the core but even 10s subs with the RASA are a little too long. Next time it will be lower gainon my ZWO 071. I love the dust aroun...