MartinS Posted February 26, 2021 Share Posted February 26, 2021 While still learning Pixinsight, I can now at least complete most of the basic functions. Complex tasks are still beyond my ability at this stage, but hope to get some steers or guidance from other members. The corners suggest the Back Focus distance needs to be extended and so far I have tried up to an additional 5mm beyond the recommended focuser distance to no avail. Now I suspect the Flatteners flat field is rolling off the edges of the APS-C sensors real estate, any thoughts. Feedback welcomed. 7 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted February 26, 2021 Share Posted February 26, 2021 32 minutes ago, MartinS said: While still learning Pixinsight, I can now at least complete most of the basic functions. Complex tasks are still beyond my ability at this stage, but hope to get some steers or guidance from other members. The corners suggest the Back Focus distance needs to be extended and so far I have tried up to an additional 5mm beyond the recommended focuser distance to no avail. Now I suspect the Flatteners flat field is rolling off the edges of the APS-C sensors real estate, any thoughts. Feedback welcomed. I would suggest using the recommended back focus for your flattener. Most astro images will have some kind of vignetting in the corners. Flat frames should take care of that problem. If you have slight vignetting in the calibrated images, using DBE in Pixinsight should remove it, applying the division image correction option. Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted February 26, 2021 Share Posted February 26, 2021 That's a really nice image. Have you used a filter on that at all? 1 Quote Link to comment Share on other sites More sharing options...
MartinS Posted February 26, 2021 Author Share Posted February 26, 2021 Yes I used Astronomik (6nm) LRGB and Ha filters, it is the 268 mono camera. Quote Link to comment Share on other sites More sharing options...
Gina Posted February 26, 2021 Share Posted February 26, 2021 Nice image 👍👍 1 Quote Link to comment Share on other sites More sharing options...
MartinS Posted February 26, 2021 Author Share Posted February 26, 2021 Thank you Gina and Dmack1 for your encouraging comments. Quote Link to comment Share on other sites More sharing options...
MarkAR Posted February 26, 2021 Share Posted February 26, 2021 Nice Monkey Head. Look up Adam Block on Youtube, lots of good info on PI. 1 Quote Link to comment Share on other sites More sharing options...
MartinS Posted February 27, 2021 Author Share Posted February 27, 2021 Thanks Mark, I have watched a couple of his tutorials. Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted February 27, 2021 Share Posted February 27, 2021 Great image 1 Quote Link to comment Share on other sites More sharing options...
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