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Posts posted by AcapulcoRolf
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7 hours ago, aleixandrus said:
Yeah, there are some issues as you go toward the edges... same happens to me despite having replaced the canon mount by the Astro Essentials M48 Adapte, I'm still trying to get the optimal backspace. But... the image looks fantastic! Love it. No need at all to go 1:1 to enjoy it.
Could you please share what SHO filters (brand, diameter, bandwidth) are you using? Thanks a lot
Thank you
These are the filters I'm using (see photo). Working out ok so far
I'm about to also pick up some RGB filters from the same brand
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Nico Carver describes a workflow for this
Look up his post on astrobin for details ("3D Fly-in -- Simeis 147 / sh2-240 / Spaghetti Nebula (HaO3RGB)")
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It was a clear night last night. Managed to capture around 7 hours of photons on IC1396 and SH2-129 with the Samyang 135
Initial post processing with no noise reduction yet applied.
Had to discard a few SII subs as dawn approached and the target started to disappear behind my neighbour's roof
Close inspection shows that some tilt remains in my image train
Will hopefully deal with that once my new lens adapter from FLO shows up
With about 5 more night's worth of data yet to be processed from the past couple of weeks, I'm looking forward to the "final" iteration and hope to tease out "the squid" (OU4)
Taken 17th/18th October 2022 from my back garden
🎯IC1396 and SH2-129
🔭 Samyang 135mm @f/2.6
📸 ZWO ASI294MM Pro
🔭 Celestron AVX
🔘SII 40x180s 125/30
🔘Ha 49x180s 125/30
🔘OIII 49x180s 125/30
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4 minutes ago, Adreneline said:
You should be delighted with that image. I love the subdued colours and the framing with the Little Rosette is perfect - you've managed to achieve some real depth in the centre of NGC7822.
I took a look close up and be careful with the noise reduction - it is introducing some unwanted artefacts.
What method did you use to reduce noise? This sort of thing call also arise with star removal.
I know you/I shouldn't pixel peep so hope you don't mind the comment.
Adrian
Hi Adrian
My image posted here has no doubt been munged by my iPad after I tweaked brightness/saturation/vibrance/contrast before uploading here so will no doubt suffer from compression on close inspection/pixel peep
As the image came out of Pixinsight untouched by iPad, noise reduction used was MLT and also SCNR
Original jpg export of xisf image direct from Pixinsight attached here as a reference- 3
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Saw first light with the new setup this past couple of weeks. Loving this lens
Just now waiting on the Astro Essentials Samyang Lens to M48 Adapter from FLO , but for now using the somewhat "wobbly" ZWO EOS Lens AdapterNGC 7822 The Cosmic Question Mark
Samyang 135mm @f/2.6
ZWO ASI294MM Pro
Celestron AVX
SII 68x180s 125/30
Ha 80x180s 125/30
OIII 60x180s 125/30NGC7822 taken 14th/15th and 15th/16th October 2022 from my back garden
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Imaging with the Samyang 135mm f2
in Getting Started With Imaging
Posted
TS-Optics T2 Thread 360° Rotation and Quick Changer now installed
I removed the 16.5mm ZWO M42M-M48F spacer that I had in place and replaced it with
TS-Optics T2 Thread 360° Rotation and Quick Changer and
TS-Optics Adaptor from M48x0,75 to T2
5mm T2-T2 spacer
I've got Baader spacers in place to get me to 44.5mm
Once the weather clears and I can get out into the field then I'll know for sure how far I'm out on spacing and then add/remove spacers as needed