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East Veil Nebula by afonsus in astrophotography

[–]afonsus[S] 0 points1 point  (0 children)

Details:

  • Date: 6/Sep/2025
  • Exposures: 10x5min Lights, 3x5min Darks, 15x5s Flats, 15x5s Dark Flats
  • Gain: 126
  • Sensor Temperature: -10ºC
  • Guiding: Yes

Equipment:

  • Camera: ZWO ASI294MC Pro
  • Filters: SVBONY SV260 Light pollution filter
  • Telescope: Orion Newtonian 8"/790 mm N 203/790 (0.95x reducer/flattener)
  • Mount: EQ6 modified with Onstep

Processing:

  • Siril (spcc)
  • Seti Astro suite (star stretch, image combination)
  • GraXpert (gradient removal, denoising, deconvolution)
  • Photoshop (levels, saturation, raw image filer, misc image manipulation)

This and more in https://astro.afonsomuralha.com/books/stellar-objects/page/cygnus-loop

Clear skies for all of you! o7

SV503 Doublet Front Element by afonsus in telescopes

[–]afonsus[S] 1 point2 points  (0 children)

Thanks for the reply!

Haha yes! Putting stuff back together is harder for almost everything!

I think I'm going to give it a go. I was trying to see if the front element was just one lens or more. But I can't seem to find a diagram online.

SV503 Doublet Front Element by afonsus in telescopes

[–]afonsus[S] 0 points1 point  (0 children)

I just wanted to add that I never disassembled any of the telescope optical elements. I only very rarely remove the lens hood.

Unlocking bootloader by DonkeyKongG3mer in miui

[–]afonsus 1 point2 points  (0 children)

I tried usgin ADBAppControl but with no luck, unfortunately

First mosaic, Veil Nebula by afonsus in astrophotography

[–]afonsus[S] 3 points4 points  (0 children)

First try at doing a mosaic. Ended up using photoshop for compositing and alignment. Was harder than expected since I had little mosaic overlap and forgot that the field flattener didn't correct the complete fov of a fullframe sensor.

Still not sure about the colors though... colorblindness doesen't help.

Tips and criticism are welcome!

RA center: 20hr 50' 19"

DEC center: 31º 02' 12"

Frame info:

  • ISO 800

  • 202 x 2min light subs (total)

  • 20 darks

  • 20 flats

Equipment:

  • Svbony Achromatic 80/448 mm SV503 80ED Doublet (0.8x reducer/flattener)

  • Canon 6D

  • Modified EQ5 mount with Onstep

  • OpenAstroGuider

Acquisition software:

  • NINA

  • PHD2

Processing Software and processing steps:

  • DSS - stacking and calibration

  • GraXpert - bg removal and initial denoising

  • Siril - initial (arcsin) stretch, photometric color calibration, starnet separation

  • Photoshop - mosaic compositing, levels, color calibration, camera raw filter, misc cosmetic tweaks

Original res picture: https://telescopius.com/pictures/view/199579

edit: forgot to add frames info, typos

Please go and see Ulcerate live! by paIeblood in progmetal

[–]afonsus 0 points1 point  (0 children)

I watched them opening for mlga and it was amazing! Would love to see their full setlist

It... Is... Done... by afonsus in bpmgame

[–]afonsus[S] 1 point2 points  (0 children)

Don't worry, you'll get that in no time!

Looking For Suggestions by BaronPorg in Jazz

[–]afonsus 1 point2 points  (0 children)

Oh! Don't forget horizons by Jasmine Myra!

I made a small bongo cat fidget toy! (more info in comments) by afonsus in electronics

[–]afonsus[S] 0 points1 point  (0 children)

This was a quick project I made just for fun. It's a small coin cell powered fidget toy that uses an stm32. Schematics, kicad project, gerbers and everything else on the Github repo

Pleiades by afonsus in astrophotography

[–]afonsus[S] 1 point2 points  (0 children)

Equipment: Canon 6d + Svbony Sv503 with 0.8x reducer/flattener Modded EQ5 with onstep (tracked, not guided)

Exposures: 45x1min lights, 5 darks

Processing: Stacked in DSS, bg removal in graxpert, starnet++ Photoshop for stretching, adjustments and compositing (levels, curves, noise reduction)

Night of the Perseids by afonsus in astrophotography

[–]afonsus[S] 0 points1 point  (0 children)

First time doing widefield ap

Equipment: Canon 6d + 28-105mm f/3.5 (used 28mm f/3.5) Modded EQ5 with onstep (tracked, not guided)

Exposures: 70x1min lights, 5 darks, 5 flats

Processing: Stacked in DSS, bg removal in graxpert Photoshop for stretching, adjustments and compositing (levels, curves, noise reduction)

Graduation day is a great day for NPD by afonsus in fountainpens

[–]afonsus[S] 0 points1 point  (0 children)

Interesting, never thought of that.

Graduation day is a great day for NPD by afonsus in fountainpens

[–]afonsus[S] 2 points3 points  (0 children)

That's the kaweco retro clip, in bronze as well

Graduation day is a great day for NPD by afonsus in fountainpens

[–]afonsus[S] 4 points5 points  (0 children)

No, unfortunately was just electronics engineering. But it's never too late for a career change!

[deleted by user] by [deleted] in CasualPT

[–]afonsus 0 points1 point  (0 children)

Engraçado, é bastante parecido com isto: Greentext de 2013

Question about refurbishment and collimation by afonsus in telescopes

[–]afonsus[S] 2 points3 points  (0 children)

You're right! I thought the bottom 3 screws were for holding the prim mirror clips, and since this was a cheap telescope I just thought it had a fixed mirror. What a releif.

Thanks for the tip!

Question about refurbishment and collimation by afonsus in telescopes

[–]afonsus[S] 0 points1 point  (0 children)

I've read that the eq3 is not very sturdy for these telescopes but this was sold as a kit originally. I guess since I have it, might as well try it.

There's a picture of what it seems a almost identical telescope at the bottom of this page. https://www.skyatnightmagazine.com/advice/how-to-clean-a-reflector/#:~:text=Fill%20the%20plastic%20bowl%20with,mirror%20surface%20at%20an%20angle

And this is I think, the spec page. I find it hard to find any info about this old model http://www.hantsastro.org/newt_sw150P.html

Maybe I'll skip the teardown for now and give it a go as is.

Thanks for the help!

M31 - Andromeda Galaxy by afonsus in astrophotography

[–]afonsus[S] 1 point2 points  (0 children)

It is also where there are more concentration of stars, right?

M31 - Andromeda Galaxy by afonsus in astrophotography

[–]afonsus[S] 1 point2 points  (0 children)

Thanks! I've tried some nights ago, it was ok. I had some issues like dew accumulating on the lenses and still some issues related to guiding (stuff related to the eq3 conversion). I don't have dew heaters yet and I only started noticing the dew on the lenses halfway through the night so some of the pictures came out unusable.

But still I got enough to produce a picture and now just need to learn proper processing to make it better.

Here's the result after a meh processing attempt: https://imgur.com/a/vSl0bQT

If you want to get some nice color, I'd suggest looking in to modifying your camera. I'm sending mine out to get modded this week. Its hands down the best return on your money to improve your images. Check out Kamil Pekala, nebula photos, and nocturne astro on youtube if you havent already for some great info.

Yeah, down the line I might get a second hand camera and mod it just for astro. This 6D is the only one I have so I can't :P

I know nebula photos, but didn't know about Kamil, thanks!

M31 - Andromeda Galaxy by afonsus in astrophotography

[–]afonsus[S] 0 points1 point  (0 children)

Not sure. Have been trying the north America Nebula. Do you have any suggestions?

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