P Holdsworth Posted July 17, 2021 Share Posted July 17, 2021 Hi all, here's my first effort with the wizard nebula. This 4.5 hours of 3 min subs with a dslr (stock) and a optolong l enhance filter. I downloaded the trial version of pixinsight to see if it was better at extracting Ha and O111 from a dual narrowband filter and have to say I'm impressed at what this software can do. I'm still serving my apprenticeship with my old trusty dslr so noise is always a challenge so will upgrade to a dedicated camera at some point. Overall though as a first attempt both with the target and software I'm fairly pleased. Cheers Paul 6 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted July 17, 2021 Share Posted July 17, 2021 2 hours ago, P Holdsworth said: Hi all, here's my first effort with the wizard nebula. This 4.5 hours of 3 min subs with a dslr (stock) and a optolong l enhance filter. I downloaded the trial version of pixinsight to see if it was better at extracting Ha and O111 from a dual narrowband filter and have to say I'm impressed at what this software can do. I'm still serving my apprenticeship with my old trusty dslr so noise is always a challenge so will upgrade to a dedicated camera at some point. Overall though as a first attempt both with the target and software I'm fairly pleased. Cheers Paul Looking great Paul. Persevere with Pixinsight, it is a fantastic piece of software and has some great tools for reducing noise in images. The main thing with images from a DSLR in Pixinsight, is to extract the channels before you do anything else, then apply linear fit, using your strongest channel as reference. After that you can follow the usual workflow of background extraction, channel combination, colour calibration, before stretching the image. Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 17, 2021 Author Share Posted July 17, 2021 Thank you Brian for the tips. Yes it does look impressive software. I found the multi linear transformation for noise reduction superb. I'm sure I've barely touched the surface so far but looking forward to really learning all that it's got to offer. Cheers Paul 1 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted July 17, 2021 Share Posted July 17, 2021 5 minutes ago, P Holdsworth said: Thank you Brian for the tips. Yes it does look impressive software. I found the multi linear transformation for noise reduction superb. I'm sure I've barely touched the surface so far but looking forward to really learning all that it's got to offer. Cheers Paul Multi linear transform is good, the EZ Denoise is probably even better. If you extract a luminance channel from your RGB, then apply EZ Denoise to that, it will improve your images dramatically. Also applying convolution to your RGB image will reduce noise by blurring the image slightly. Only do this if you are using luminance data to provide the detail. 1 Quote Link to comment Share on other sites More sharing options...
peter shah Posted July 17, 2021 Share Posted July 17, 2021 lovely capture Paul Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 17, 2021 Author Share Posted July 17, 2021 Thank you Peter Quote Link to comment Share on other sites More sharing options...
MarkAR Posted July 17, 2021 Share Posted July 17, 2021 (edited) A great effort Paul, the colours in the nebula look really good. One great thing in PI is Starnet and the ability to work on nebulosity and stars separately. I notice a general blue tint to them in your image, could be an effect of the filter. Edited July 17, 2021 by MarkAR Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 18, 2021 Author Share Posted July 18, 2021 Thank you Mark. Yes I used starnet to work on the nebula but did'nt do anything with the star layer. I think if I'd applied an scnr to the star layer that would probably have taken care of the blue tint to stars. May go back and have another look at just the stars. Thanks again Mark Cheers Paul 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted July 18, 2021 Share Posted July 18, 2021 I echo the comments about PixInsight. Steep learning curve, especially if you are trying to work it out yourself, but have a look at Adam Blocks channel on YouTube. He is a recognised expert on PI and will give you plenty of tips. If you fancy a reasonably priced paid for course then have a look at mastersofpixinsight as they take you from a novice upwards. Again two recognised experts in the field giving tuition. I have done the latter and it is well worth the money. Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 18, 2021 Author Share Posted July 18, 2021 Thankyou Terry I'll definitely take a look 👍 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 18, 2021 Share Posted July 18, 2021 Very nice Paul! 1 Quote Link to comment Share on other sites More sharing options...
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