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Everything posted by Bibabutzemann

  1. During Collimation Primary mirror, secondary mirror and focuser getting alligned. So if the focuser isnt pefectly square to the tube, it shouldn't cause issues. For final adjustments of the primary mirror, i use my main camera+CC and i take images of a star rich field with a bright star at the center. Then in live view i adjust the primary mirror, so that the bright star moves in the opposite direction of the worst corner. Then i move the scope to recenter the bright star. Refocus and repeat the procedure until all corners are equal. When all corners are equally bad, you can worry about correct spacing
  2. I also found that chopping the draw tube is not necessary, even with my Canon. It doesnt protrude enough to cause any issues. I had to unscrew the stop ring of the CC and push it further in along with my extension tube. This only works with my thin 1mm M48 to EOS adapter, not with the standard 11mm EOS T Ring. Tried new processing techniques on Bubble Nebula and Sorroundings captured last autumn. Roughly 19 hours integration with the l-extreme and 1 hour for RGB Stars HEQ 5 + EOS 2000D + 130PDS
  3. Thanks! Mosaic and Photometric Color calibration was done in Pixinsight. Stetching was done in Siril. To preserve more of the colours, i first apply two moderate arcsinh stetches before doing the final stretch in Photoshop. At the end i remove the green tint and do some final saturation but with a star mask to prevent oversaturated stars. CS Patrick
  4. Ok Clean shot btw! M31 from September, 2 Panel mosaic with 3 hours each. And here NGC663 & friends HEQ5, EOS 2000D, Bortle 5 CS Patrick
  5. Hi, nice setup! its an easy and cheap but effective tuning for better star shapes and less halo. I bought mine at a shop from austrian astro youtuber Daniel Nimmervoll (liquidart-shop). Its a high quality 3D print in mat black with perfect fit and minimal intrusion in the optical path. (mat is optional for 6 euro) Another easy fix is to cover the back of your scope with a swimming cap to reduce light gradients. To reduce risk of tilting its recommended to replace the 2 screws at the 2" adapter wtih nylon tipped screws. Ideally make a third hole for evenly applied pressure. (i dont know where to get those nylon screws though, im wondering that myself)
  6. When you dither between every (few) image you would expect that the hotpixels dont allign. These artefacts should go away once you do median stacking or additive stacking with default rejection settings. I get the same pattern like on your 2nd image when doing addtive stacking and choose "no rejection" as a rejection method. Comparing your worklfow with this tutorial by Dominique Dhoosche may helps understanding what went wrong: https://siril.org/tutorials/tuto-manual/
  7. At least you got Ceres.😀 I think with Bortle 9 i wouldnt even bother with galaxies or other dim broadband targets. Better use a portable setup and just go out in the fields. Comparing Signal-Noise-Ratio, 1 hour in Bortle 3 is worth over 100hours in Bortle 9.
  8. nice one. I wonder if its worth doing narrowband on Orion. Maybe depends on the light pollution, but i think orion is bright enough to prioritize RGB over NB. The nebula is partly broadband and very colourful. Here is an image of M90 and few other galaxies. I planned to frame it together with Ceres, but turns out that Stellarium isnt accurate by default (realized during imaging, had to add the latest data via solar system editor) Luckily, Ceres still moved into my framing. During imaging i also realized that there are two additional asteroids in the image. I expanded the catalogue in Stellarium and could identify them as Chloris (124km) and Tiflis (21km). Also made a gif (had to reduce quality) All three asteroids are part of the asteroid belt. So the brightness of the asteroids roughly correlates with their size. If you look REALLY closely, you can see something else flying along the asteroid belt Tychostation.mp4 (anyone watching The Expanse?)
  9. The troubling trio Chloris, Tiflis and Ceres photobombed my picture of M90. Spot the asteroids! asteroids.mp4 Resolution here acquisition: 27.2.23, Germany, Bortle 5 HEQ 5, 130PDS, EOS 2000D ~4hours
  10. Galaxy season has started! M109 + Phecda. Love the dynamic between these two objects. 130PDS+HEQ5+2000D, 4.5h, Bortle 5. Edit: Corrected Version, somehow the Photometric color calibration in Siril makes the image too green..
  11. Hi Since weather in January was too cloudy, i could image the ZTF comet only on 6.2.2023. It was full moon and the comet wasnt as beautiful anymore, but i like the animations. I did one with fixed comet and one with fixed stars. Not sure which i prefer. Captured with EOS 2000D, 130 PDS, HEQ5 over a time span of 3h10m. Also full moon from same night fixedcomet1.mp4 fixedstars1.mp4 Ugh does anyone know how to make the video size smaller 😄
  12. In my opinion a used 2000D is the best budget camera for astrophotography you can get right now. I disagree that any 18MP Canon will do better. From my personal experience the Canons before 2000D have serious banding issues. The 2000D gives a cleaner image. Also it has the lowest Read-Noise, (better than the 4000D or 200D), which means you can lower exposure times. I bought the 2000D after i did a comparison between my old 1200D and the 2000D from a friend. Big difference. It has also higher Quantumn efficiency and 24MP is better for sub 800mm focal length IMO. I got it used (like new) for 200€. If you would want a APS-C sized dedicated astro cam you would have to spend like 5 times the money for a used model. And honestly i dont think the difference between cooled OSC and DSLR is that big that its worth the upgrade. Only during warmer nights combined with a dark sky / narrowband the difference becomes apparent. My next step from DSLR will definetely be a mono camera.
  13. For 1500€ i would definitely go for a APS-C sized sensor, ideally with the IMX571 Sensor. A used QHY 268C or a new Lacerta 2600C for example.
  14. Hi, i did a few imaging sessions on several targets over the last summer and autumn. Only now i started to processing the data (which was a mess, because the flats and lights were all over the place on my drive 😐) Mid 2022 i switched to the EOS2000D. It has a much cleaner noise than my old 1200D. My first result is the Eastern Veil Nebula HEQ5, 130PDS, Baader MPCIII, L-Extreme, EOS2000Da 7 hours of data, Processed with Siril, Photoshop, Starnet
  15. The sharpening of the dustlanes looks pretty similar to me. But i prefer the first one simply because in the 2nd image it seems the StarXterminator turned into GalaxyXterminator Many tiny background galaxies are gone
  16. I was always scepitcal towards AI shapening because i felt like it invents new data but this approach seems different. I just wish there would be a standalone version, since i really like my workflow with SiriL and PS. I dont see myself paying 350€ to use it.
  17. This looks almost the same as your stacked image. I think your final image should come out better, even with such frames. But this single frame is too blurry for a c9.25 anyway. The pixel size of your asi 120mc should be good enough for decent Jupiter images. Dont know if the seeing was really that bad or if its not properly focused. To rule that out i would use a Bathinov mask and focus on a star, before slewing to the planet.
  18. Hi, What was the altitude of Jupiter? What is your focusing procedure? Maybe you could show a single frame of one of your top 25% CS Patrick
  19. Combination of those two should work for a DSLR setup: https://www.firstlightoptics.com/offers/offer_ts-ultra-short-t2-adapter-for-canon-eos-1mm-length_299370.html https://www.amazon.de/Svbony-Verlängerungsrohr-Verlängerung-Brennweite-Astrofotografie/dp/B07S72HT9R/ref=asc_df_B07S72HT9R/?tag=googshopde-21&linkCode=df0&hvadid=501171454772&hvpos=&hvnetw=g&hvrand=12580399997129093878&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9041990&hvtargid=pla-876062391525&psc=1&th=1&psc=1(only the 10mm extension tube is needed) This reduces the protrusion by 10mm. Im not sure if i will buy this though. It adds 60€. Maybe i would rather sell my MPCC and buy the GPU CC instead.
  20. Wouldnt you need an adational adapter to reach the 55mm distance between MPCC and sensor with that 1mm adapter?
  21. I think the Baader MPCCIII is an absolute steal on used market for like 100€. But i read more good stuff about the GPU CC, which i rarely find used under 250€. Its less tilt sensitive and more future proof in case you want to add a f4 Newt to your collection. Oh another advantage of the GPU i think is, that the focus tube doesnt protrude as much. So i think both are worth what you pay for 🙂 I think i will switch at some point to the GPU Processed an image from february: IC410 130PDS, EQ3Pro, EOS1200Da 6.3h with L-extreme Filter, 40min RGB for star colors Processing with: Starnet v2 SiriL 1.02 - They improved their Background Extraction signficantly, because they collaborated with the team from GraXpert (a standalone tool for Background extraction) . Just select the RPF as interpolation method and see the magic happen 😀 Photoshop - with a new plugin called NoiseXterminator, to reduce noise without losing too much details I feel like this target needs another 6 hours, because i had to do lots of noise reduction.
  22. i like it too! Not sure how much S2 will improve your image, but i think adding 2-3 hours of rgb data just for the stars would be nice addition. CS Patrick
  23. Nice result! I prefer the background of the first image, because i think a a bit of noise is good, so that the tiny background galaxies dont get washed out: But i prefer the m81 of the 2nd image. In the first it looks a bit oversaturated, because the transition from young blue star region to yellow looks a bit too harsh for my taste: CS Patrick
  24. maybe it would be helpful to rotate your camera and shoot the same target. Just to see how the reflection changes if at all.
  25. NGC 7000 , 3.2hours with the L extreme and EOS 1200Da cooled I just did a quick processing, because i may add some data in the future. Just wanted to show the perfomance of this awesome filter under full moon conditions. No background extraction was necessary, which i still find mind-boggling.
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