Popular Post peter shah Posted February 9, 2021 Popular Post Share Posted February 9, 2021 (edited) Can't really say this is a shot on M81 and M82, although they are both smack in the centre of the field! Ultra wide field Integrated Flux Nebula around M81 and M82. Imaged from Spain with the 105 sigma Lens and the ZWO2600 OSC, 5hrs total exposure, 300s subs. I've also reprocessed my old data set taken with my AG12 from the UK, I merged the two to bring out some colour in 81 and 82 Thanks for looking Peter Shah Edited February 10, 2021 by peter shah Worked on Star colour 11 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted February 9, 2021 Share Posted February 9, 2021 46 minutes ago, peter shah said: Can't really say this is a shot on M81 and M82, although they are both smack in the centre of the field! Ultra wide field Integrated Flux Nebula around M81 and M82. Imaged from Spain with the 105 sigma Lens and the ZWO2600 OSC, 5hrs total exposure, 300s subs. I've also reprocessed my old data set taken with my AG12 from the UK, I merged the two to bring out some colour in 81 and 82 Very impressive. Love the wide angle shot, and only 5 hours of data. I have been looking at the 2600 for some time, it has the Sony IMX571 chip, which seems to be all the rage at moment. I believe the latest Altair cameras use the same chip, and probably a few other companies too. Brian 1 Quote Link to comment Share on other sites More sharing options...
Gina Posted February 9, 2021 Share Posted February 9, 2021 Two beautiful images - you've excelled again Peter 👍👍 1 Quote Link to comment Share on other sites More sharing options...
Jkulin Posted February 9, 2021 Share Posted February 9, 2021 1 hour ago, AstronomyUkraine said: Very impressive. Love the wide angle shot, and only 5 hours of data. I have been looking at the 2600 for some time, it has the Sony IMX571 chip, which seems to be all the rage at moment. I believe the latest Altair cameras use the same chip, and probably a few other companies too. Brian Yes Brian my 26c has the same chip, I'm am just going to save up now for the Mono version when it comes out as it could revolutionise my imaging time. 1 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted February 9, 2021 Share Posted February 9, 2021 (edited) 14 minutes ago, Jkulin said: Yes Brian my 26c has the same chip, I'm am just going to save up now for the Mono version when it comes out as it could revolutionise my imaging time. It has a pixel size more or less the same as my ZWO 1600, and would have an image scale of .9 with my Esprit, which is perfect. I too would wait for the mono version. Not sure why, but I can't get into OSC imaging, even though it has a lot of advantages over a mono camera. Edited February 9, 2021 by AstronomyUkraine 1 Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted February 9, 2021 Share Posted February 9, 2021 That widefield is just amazing. Can I ask what processing techniques you used to bring out the faint IFN. 1 Quote Link to comment Share on other sites More sharing options...
geoflewis Posted February 9, 2021 Share Posted February 9, 2021 3 hours ago, peter shah said: Can't really say this is a shot on M81 and M82, although they are both smack in the centre of the field! Ultra wide field Integrated Flux Nebula around M81 and M82. Imaged from Spain with the 105 sigma Lens and the ZWO2600 OSC, 5hrs total exposure, 300s subs. I've also reprocessed my old data set taken with my AG12 from the UK, I merged the two to bring out some colour in 81 and 82 Thanks for looking Peter Shah Hi Peter, as you know I saw this over on Astrobin first, but it’s worth repeating here, this this is one heck of a superb image. I agree it’s not really about M81/M82, but they certainly give context to what you captured. Great job 👏 1 Quote Link to comment Share on other sites More sharing options...
Astrobdlbug Posted February 9, 2021 Share Posted February 9, 2021 (edited) What an absolutely stunning widefield - the amount of flux nebula that has been captured is nothing short of remarkable - I am seriously looking at this IMX571 sensor as in combination with a fast optical system together this pairing is revolutionising the mainstream image aquistion techniques - I mean all that detail in 5hrs and the depth of image that it gives is breaking the mould that we thought was possible to achieve with such a relatively short integration - If you had posted that just a year ago I would have thought that was a 20hrs+ project . Your second combined image is jaw dropping and as discussed in spearate thread the combined FL images results in a view seldom, if ever , seen - as usually M81/M82 is against a relatively black and empty background - but no you have shown galaxies and nebula ( ok flux nebula) can be combined into something so much more - briliant Peter, very inspiring work, thank you for sharing Bryan Edited February 9, 2021 by Astrobdlbug spacing 1 Quote Link to comment Share on other sites More sharing options...
peter shah Posted February 9, 2021 Author Share Posted February 9, 2021 15 minutes ago, Dmack1 said: That widefield is just amazing. Can I ask what processing techniques you used to bring out the faint IFN. Thank you......The foundations of the image is so importatnt.....so preparing the images for stacking with good calibration and correction is key to be able to bring out the faint fluff. I do all my pre processing and all of the pre-stretched work in Pixinsight before taking it over to photoshop. There I measure the background levels with the curves tool and make careful stretches to tease out the faint stuff...this needs to be done with small iterations taking care not clip the data.... no black magic required! 11 minutes ago, geoflewis said: Hi Peter, as you know I saw this over on Astrobin first, but it’s worth repeating here, this this is one heck of a superb image. I agree it’s not really about M81/M82, but they certainly give context to what you captured. Great job 👏 Thank you Geof....I agree its all about the FOV and is more to it than the obvious galaxies. i think the fact M81 and 82 are there places them nicely in the sky......its amazing to me. 1 hour ago, Gina said: Two beautiful images - you've excelled again Peter 👍👍 Thank you Gina... I do like this little 105 lens and camera combo....its a little photon hoover 2 hours ago, AstronomyUkraine said: Very impressive. Love the wide angle shot, and only 5 hours of data. I have been looking at the 2600 for some time, it has the Sony IMX571 chip, which seems to be all the rage at moment. I believe the latest Altair cameras use the same chip, and probably a few other companies too. Brian Its such a sensitive camera...the beauty about Cmos is short subs and a fraction of the noise...this allows you to do lots of short dithered subs and take advantage of rejection algorithms when stacking, further lowering the noise floor! The disadvantage is the disk space an processing power needed.... 1 Quote Link to comment Share on other sites More sharing options...
peter shah Posted February 9, 2021 Author Share Posted February 9, 2021 (edited) 17 minutes ago, Astrobdlbug said: What an absolutely stunning widefield - the amount of flux nebula that has been captured is nothing short of remarkable - I am seriously looking at this IMX571 sensor as in combination with a fast optical system together this pairing is revolutionising the mainstream image aquistion techniques - I mean all that detail in 5hrs and the depth of image that it gives is breaking the mould that we thought was possible to achieve with such a relatively short integration - If you had posted that just a year ago I would have thought that was a 20hrs+ project . Your second combined image is jaw dropping and as discussed in spearate thread the combined FL images results in a view seldom, if ever , seen - as usually M81/M82 is against a relatively black and empty background - but no you have shown galaxies and nebula ( ok flux nebula) can be combined into something so much more - briliant Peter, very inspiring work, thank you for sharing Bryan Thank you Bryan....I have to agree Cmos is amazing.....short subs with the fraction of the noise of a CCD is quite remarkable. To be honest the image that blew me away completely and made me realise that Cmos has changed how imaging is done was when I processed my "1hr 40mins " exposure of the Large Molecular Cloud....I still cant believe how much data was in it!!! Here it is ....a whopping 1hr 40mins all made up from 300s unguided subs!... Same set up as M81/82 Edited February 9, 2021 by peter shah 1 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted February 9, 2021 Share Posted February 9, 2021 20 minutes ago, peter shah said: Its such a sensitive camera...the beauty about Cmos is short subs and a fraction of the noise...this allows you to do lots of short dithered subs and take advantage of rejection algorithms when stacking, further lowering the noise floor! The disadvantage is the disk space an processing power needed.... I see that ZWO are bringing out a mono version of this camera in late February. Judging the quality of the OSC images, it seems a fair bet that I will be ordering one. Brian 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted February 10, 2021 Share Posted February 10, 2021 All those images are astonishing Peter. 1 Quote Link to comment Share on other sites More sharing options...
MartinS Posted February 10, 2021 Share Posted February 10, 2021 Stunning images and clear testament to the new generation of Cmos sensors and your skill at extracting the faint detail, terrific. Thanks for sharing. With these next generation Cmos camera’s there is hope for us sky starved imagers in the U.K. and Northern Europe. 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted February 10, 2021 Share Posted February 10, 2021 That's phenomenal Peter! Only learned about IFN recently and now I find out it'severywhere! Well done for bringing it out so well in both of the images above. 1 Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted February 10, 2021 Share Posted February 10, 2021 10 hours ago, peter shah said: no black magic required! Oh that's a real pity - I was rather looking forward to dancing naked round my scope at midnight sprinkling some chicken blood around. 🤣 Thats even more incredible for just being done with curves - I have tried to follow Scott Rosens - method which uses "Screen Mask Invert" with middling results. I have a brand new ASI2600mc Pro sitting on my bench laughing at me while I wait for a clear sky and your images are simply cranking up the torture level!! 2 Quote Link to comment Share on other sites More sharing options...
peter shah Posted February 10, 2021 Author Share Posted February 10, 2021 (edited) 49 minutes ago, Dmack1 said: Oh that's a real pity - I was rather looking forward to dancing naked round my scope at midnight sprinkling some chicken blood around. 🤣 Thats even more incredible for just being done with curves - I have tried to follow Scott Rosens - method which uses "Screen Mask Invert" with middling results. I have a brand new ASI2600mc Pro sitting on my bench laughing at me while I wait for a clear sky and your images are simply cranking up the torture level!! Sorry my rather simplified answer was a bit misleading, its not just curves... Its quite a lengthy process TBH....there is masking but primarily curves with no masking at first to get the initial separation. The ASI2600 is stunning....you will have the last laugh. Edited February 10, 2021 by peter shah 1 Quote Link to comment Share on other sites More sharing options...
peter shah Posted February 10, 2021 Author Share Posted February 10, 2021 1 hour ago, Padraic M said: That's phenomenal Peter! Only learned about IFN recently and now I find out it'severywhere! Well done for bringing it out so well in both of the images above. It really is all over....you tend to find it more around galaxy season as the views are generally looking out of the Milky Way's spiral arms. The IFN sits in the outer edges of our galaxy so its easier to find when looking out and away from the the Milky Way 1 hour ago, MartinS said: Stunning images and clear testament to the new generation of Cmos sensors and your skill at extracting the faint detail, terrific. Thanks for sharing. With these next generation Cmos camera’s there is hope for us sky starved imagers in the U.K. and Northern Europe. I'm converted....it was a difficult transition for me using CCD for many years 4 hours ago, TerryMcK said: All those images are astonishing Peter. Thank you very much Quote Link to comment Share on other sites More sharing options...
ApophisAstros Posted February 11, 2021 Share Posted February 11, 2021 A lovely brace of images there Peter, Roger 1 Quote Link to comment Share on other sites More sharing options...
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