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Astroarg last won the day on April 1

Astroarg had the most liked content!

About Astroarg

  • Birthday 10/02/1981


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    IT Systems Manager
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    Cambridgeshire, UK

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  1. a lot of newer CMOS cameras would show issues with BIAS frames, that then passed to whatever they were integrating to.. the recommendation was to do Dark Flats instead (so when you do your flats, you leave the settings and just cover the scope and take 20-30 images and these are your DF. Some of the newer-newer CMOS cameras are OK with BIAS, rather than needing to do DF on every session. I always did DF with my 183c, I've been doing it with my 26c but will soon test BIAS, as have done a bunch of them since the weather has been so poor! PS, APP and PixInsight will "recommend" that BIAS are added because they are missing from the integration panels, it's just a warning.
  2. Lovely.. I agree on the 26/2600 front.. I'm only capturing 2-3 hours on a target now and happy with the result that I move on not "hmm, need to get to 8-10 hours" on the PI front: I don't use DBE. I use NSG script, integrate (either Linear Fit or the funny named one) then 2,3 or 4 iterations of ABE at factor 1. I find this works sufficiently to remove gradients very well.
  3. Astroarg


    Welcome to the forum 👍 (mostly) a great bunch of people who are very helpful and insightful! fingers crossed you get some clear skies for the LE filter soon 🤞
  4. It’s quite easy when I just say HA/OIII and it’s not Altair 🤣🤣
  5. Secret! I’m not allowed to reveal the manufacturer, although they didn’t actually give me an NDA. It is a HA/OIII as before, apparently improved. Just waiting on confirmation of what
  6. Test of a new filter I was sent - this is only 1hr 10 mins integrated (14 x 300s) Cant wait to add some more data... Altair 72EDF with the new 1x flattener Altair 26C with "secret squirrel HA/OIII filter" iOptron CEM25P guided Captured in NINA Processed fully in PI, with darks, flats and dark flats applied
  7. Final test that's impressed me with the new flattener, now I'm faced with weeks of cloud and rain {cry} 1hr 45 on North America and Pelican nebulas. I've tamed some halos - not sure what has caused these.. oddly one shoots off towards bottom left and the others towards the top right. Corner stars are far better now! Altair 72EDF scope + dedicated 1x flattener Altair 26C camera + Altair filtertray w/ Altair DuoBand HA/OIII iOptron CEM25P mount Guided by PHD2 with Altair MG32 package Captured in NINA (21 x 300s) Fully processed in PI start to finish - (inc. Darks and Flats) PI Process WBPP, EZ Denoise and soft-stretch, then: Star XTerminator on RGB image to keep star mask. Reset image back to containing stars. Star mask image rename to SM Channel Extraction R,G,B. Delete B Star XTerminator on channels R and G S Curve on G to brighten the nebula and darken the background in line with the R channel Dark Structure script on R Pixelmath r*0.6+g*0.4 Rename G to B and new image to G LRGB of R,R,G,B Additional stretching. Rename to SHO Photometric Colour Calibration on SM Pixelmath SHO+SM
  8. Recommend this.. as a user of a L-Extreme that caused my kit some halos, none on the same targets when using this.. examples can be found in the gallery 👍
  9. for me, Star XT ran in 25secs, even with a NVidia card (older gen, 970) and the CUDA setup so Starnet uses GPU, stride 128 took 3 mins. I too am impressed with Star XT - done a few tests with different targets. Someone mentioned to me it can mess up a low contrast image though. Also, the PI plugin is not anywhere near as powerful as the PS plugin (yet), but I did just stick to PI for my tests.
  10. same data, different colour palette
  11. Hi Bungle.. as per my comment on one of the Altair FB posts, what I thought was filter issues turned out to be flattener issues (proved by testing all filters once I fitted new flattener) but I had already impatiently ordered the Altair one as was in stock.
  12. The floating brain of space. An emission nebula in Cygnus, part of the rich-band of the Milky Way we can see, and is "approximately" 5,000 light years away from us. Estimated to be 4-5 million years old. The star that has caused the shell of gas will likely supernova when it finally runs out of fuel This was tough to process as nearly all 22 images were affected by high wind and high clouds. Just shy of 2 hours integration, definitely needs a lot more pumping in (most detail in astro images comes out on the 10+ hour mark) Tried to emphasise the dark nebula structures and Hydrogen wisps in the background. Techy details for the astro-nerds: Altair 72EDF + dedicated 1x flattener Altair 26C + Altair Duo Band HA/OIII 7nm filter iOptron CEM25P guided with Altair MG32 package Captured in NINA (~22 x 300s) Processed in PI with Master Dark and flats
  13. Possibly lost in my previous post, I found the culprit to my bad corners, and this was the outcome of a night's test. Also was test for the Altair Duo Band HA/OIII 7nm filter. 1hr 45 total (21 x 5m), MD applied and flats, (possible gradient to the right)... but no ghost/comet stars in all corners, wahoo!
  14. turns out it was my "generic" Altair Lightwave 1x and 0.8x flatteners after all... I could have saved on the 26c haha! Speaking with Nick, arranged a test with the new dedicated 72EDF flattener (1x) and corner issues have gone. I also picked up the Altair Duo Band filter, long story about my Optolong L Extreme not for today haha 1hr 45m from a cloudy night last night
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