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john2y

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Everything posted by john2y

  1. It looks like a really nice image but I'd definitely crop out the stacked edges, also try to denoise it a little less, a little noise is better than completely smoothed out image
  2. So about two months ago I did a widefield of the Cepheus using my Canon 6D and Samyang 135mm. Out of curiosity I cropped the Shark out of the image, using dynamic align I align it with my luminance data, then I really strongly denoised it and combined it to make LRGB image and even though it looks bad as an image it looks good as a preview of what I'm gonna get when I'll be done with it
  3. You got good data but something wrong has happend during processing, using deconvolution you've managed to produce some artifacts that look like a white thread and the stars are really deformed possibly due to excessive use of star reduction. Try some reprocessing it I believe you'll get much better result
  4. It looks like really nice image but try to reduce the chrominance noise either in Pixi using MLT or photoshop using Luminance denoise and cranking up the color noise reduction.
  5. Thank you for the compliment but it wouldn't be possible without such good data about the noise, try cutting the exposures a little, it might be that but I don't think so, I use asi1600mm and I do 8min exposures but as I've said the data looks solid so you'll just need some experimenting, you could also add more data, that always helps if you're not running 40 hours already . About the processing it just takes practise, I usually try to process at least one image per day, even the same one over and over. Practise makes it best
  6. This is what I've come up with, I've never seen data so clean, so well applied flat and everything and yet I had trouble denoising it which quite suprises me and I don't know the cause of that. I started by resampling it by 50% then manual DBE, TGVDenoise, LRGB combination as HOO, Masked stretch, Lum mask and playing with curves, Range mask and another curves and then ACDNR for smothing the background. What filters are you using, they seem really good. I'm asking as I use ZWO and they're not the best.
  7. This is an awesome image but I can't help but notice the vertical banding. If you're using Pixinsight for processing, try Canon Banding Reduction script, it should get rid of all the bands otherwise it's an excellent result
  8. Sorry for tinkering with your data, I just wanna show what I ment, background does shine, it's not pitch black but it also doesn't shine like the nebula in front of it. If you look at your image, the background in the center is black but outside isn't. I did manually DBE (and yes there was a gradient from the center to the edges) and then just applied inverted luminance mask and using curves I slightly lowerd saturation and brightness of the background. It's jpeg so it's not ideal but you get the gist.
  9. First post was updated with a preview of the mosaic
  10. I know you were trying to pull as much nebulosity as possible but the background doesn't shine like that, what program do you use for processing? It also looks like your flat didn't apply correctly as the edges are much brighter than the center of the image. Overall the data looks really nice so it would be shame if you didn't give the processing another go
  11. Thank you for the tip! I'm looking into it and just from what I've tried in pixi just to see what's it about I really like it. Thank you, I googled few images and I know exactly what you mean
  12. This image consists of 4 widefield panels taken with Samyang 135mm on Canon 6D this year in Chile while I was visiting for the eclipse. Under really dark skies it is a naked eye object.
  13. Hey guys, few weeks ago I started shooting the Wizard nebula in narrowband so I could process it in SHO. I was originally planning on doing 10 hours per channel but then I've decided to cut the times short as I started a different project which is much bigger than this one (the Dark shark nebula) I ended up with 6 hours of Ha and 2 hours of Oiii and Sii each. Processed it in Pixi and even though the image is noisy and the stars look terrible, it's done. Next time I'll try to do better. Cheers Jan
  14. That image looks great and I admire your dedication for this one, but something's wrong in your imaging train, look at the stars in your top right corner. It's like the camera was pulling on one side of the focuser so much the sensor stopped being parallel with the rest of the imaging train. I used to have the same problem, I'd recommend checking the stiffness of the focuser and retightening of every screw around it. Also this might be just my taste but I would hold back on with the denoising, with 53 hours you don't really need it and the result looks a bit too plastic. A little noise is good it adds sharpness to the image.
  15. It looks like something in the imaging train isn't parallel, otherwise the stars would look the same in all corners. Check the tightness of everything. Definitely use the L filter as it cuts UV/IR.
  16. Hey guys, three days ago I started gathering some data for the Dark shark. Due to the FOV of my setup I can't fit the whole nebula in one pic so I'll have to do a 2 panel mosaic. As it's my most favorite nebula and so far I only captured it in a widefield using Samyang 135mm with Canon 6D so it was super tiny. Now I finally tunned out my setup to do it properly. As I already mentioned I think it's just so amazing and the resemblance to a shark is really uncanny so I'm planning on spending some real time on this one. I've planned out 15-20 hours of luminance data for each panel with 5 hours for each colour filter for each panel. My current record is 22 hours of integration time and I aim to surpass it more than twice . It's gonna be real pain but I really hope it'll be worth it. This is the result so far after three days. 103x5min (8,6 hous) of L data for the left part of the mosaic. I was surprised how visible it is after this short amount of time, I processed it in Pixi but only did DBE, Stretch, Resampled it down by 50% and fiddled with curves. In the full resolution the noise is still problem but it should slowly disappear after I add more data. Telescope: Explore Scientific 102/714 APO Triplet with 0.8x reducer Mount: iOptron CEM60 Camera: ASI1600MM Pro - Gain 0, Offset 50, Cooled to -20 Update 28.8.2019: Last night I finished shooting of the head part and mannaged to squeeze a few shots of the tail part as well so this is first preview of how it's gonna look like You can see the difference between the head with 12 hours of data and the tail with just one and a half, I need some clear moonles nights. 7.9.2019 Update: I've managed to finish Luminance acquisition, so far 31 hours but I had to throw 7 hours out due to a lower quality. Now I'll have a couple of weeks of NB imaging as the moon starts to grow, then I'll hopefully do the RGB. Cheers Jan
  17. Turns out it was loose connection of the GPS module to the main board. When I disassembled it and pushed the connector back all the way it started working, indoors, outside, everywhere ?
  18. I contacted iOptron and they've send me a manual on how to reset the gps and if that doesn't work, I'm to send the module for replacing.
  19. I did, there was no obstruction for 50 meters...nothing.
  20. Hey guys, so I finally got a new mount and I was really excited about it, but after few nights with it I never got a GPS to connect, all I have is GPS ON. Only time it ever connected was in my room when I was testing it but when I take it on the balcony or even to garden, nothing. I'm running the newest firmware on all parts but it just won't connect. Any ideas how to fix this? Jan
  21. Great data but I think you should've done more sample stars all over the image in the dynamic alignment as some stars are not round meaning that the alignment wasn't perfect. Also for processing I would use NBRGB combination script. Then when everything combined I'd make couple of colour masks and played with curves to achieve wanted colours and then process just the stars from RGB and overlay them in PS. Also don't reduce the stars too much as it tends to make weird shapes in the image.
  22. I'd take a look as well, it looks like you went a little too hard with denoising it. What programs did you use?
  23. That is beautiful, I'm saving up for secondhand 6D and images like these just make me want it even more ?
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