One of the last deep space objects I captured on Crete are two visually large nebulae. And these are IC1805 Heart Nebula and IC 1848 Soul Nebula. Both are very dim objects, therefore I set the shutter speed of the Canon EOS 6Da camera to 3 minutes and let it capture the light shooting from the constellation Perseus the whole night long. Even NGC 884 869 Double Cluster fit in the field of view.
Technical details:
Lens | Askar FMA180 F4.5 |
Camera | Canon EOS 6Da |
Mount | iOptron Skyguider Pro |
Exposure | 50x180s, ISO 1600 |
Date | 2021-07-12 |
Hi Jakub,
How ko you find this little scope? I use it mainly for narrow band since mine has terible blue halos around bright stars. Do you use any filter for broadband imaging?
Thanks
Hi Michal, I am very happy with this little scope. Specifically, the portability is unbeatable. However, I got some reflections, for example on this picture. You can see that Orion’s belt is captured “twice”. But, I used IDAS NB1 filter, which might be the root cause of the reflection. It’s quite well known that the OIII narrowband filters cause the hallo around the bright stars. For example here, Martin Myslivec tested new Baader filters. It’s in Czech, but automatic translation should do the job. If you want to avoid that you have to spend a lot of cash on Astrodon ridiculously expensive filters.
Thank you for your reply Jakub. Indeed , it is great portable scope for narrowband imaging . However for broadband it produces terrible halos in blue channel. I found a workaround by splitting channels when using osc And I use star reduction in blue channel before merging data together
Hi Michal, yes, I have to confirm, this scope has terrible chromatic aberration in broadband. It can be partially suppressed in postprocessing. My workflow in Pixinsight: invert the picture and do SCNR to remove greens, then invert again. Then create a star mask and push the saturation down. This somehow worked.