I didn't take these. I downloaded them. They were taken at a remote site in Spain with a Takahashi FSQ106ED at f/3.6 and a QSI camera.
We can dream can't we?
These are single frames: one each of Ha, R, G, B with exposures 600s, 900s, 900s, 900s, respectively.
Brian
Takahashi FSQ106ED and Bortle 2/3 skies
Re: Takahashi FSQ106ED and Bortle 2/3 skies
Brian
I downloaded the data from the home page and spent 2 days developing my APP skills. Incredible detail from Bortle 2/3 skies. As usual with imaging, no gain without pain. This is what I managed to produce.
I had to experiment stacking different numbers of RGB frames in order to get the colour balance right. Also a synthetic L frame was generated by combining Ha, R, G, B stacks, described here https://www.astropixelprocessor.com/har ... olonnello/.
The camera used for capture was a QSI 683ws (KAF 8300 sensor). 20 darks, 20 bias and 10 flats were used with each filter. APP performed flawlessly handling this data.
Alnitak is troublesome with these exposure lengths and currently beyond my processing capabilities but I am satisfied with the range of colours and Ha detail.
Dave
I downloaded the data from the home page and spent 2 days developing my APP skills. Incredible detail from Bortle 2/3 skies. As usual with imaging, no gain without pain. This is what I managed to produce.
I had to experiment stacking different numbers of RGB frames in order to get the colour balance right. Also a synthetic L frame was generated by combining Ha, R, G, B stacks, described here https://www.astropixelprocessor.com/har ... olonnello/.
The camera used for capture was a QSI 683ws (KAF 8300 sensor). 20 darks, 20 bias and 10 flats were used with each filter. APP performed flawlessly handling this data.
Alnitak is troublesome with these exposure lengths and currently beyond my processing capabilities but I am satisfied with the range of colours and Ha detail.
Dave
Re: Takahashi FSQ106ED and Bortle 2/3 skies
Great work Dave! You are the APP wizard.
Brian
Brian
Re: Takahashi FSQ106ED and Bortle 2/3 skies
Not really Brian - I used all the default settings in APP.
Dave
Dave
Re: Takahashi FSQ106ED and Bortle 2/3 skies
Fair enough but you knew what buttons to press in the proper order!
Brian
Brian
Re: Takahashi FSQ106ED and Bortle 2/3 skies
After some 'support & encouragement' from Brian I have settled on this one. This is the 9th version (9th attempt at processing the stacks) - better framed and finally managed to grasp removal of light gradients in APP. In the end, more was achieved with less processing. The final step was to denoise with Neat Image.
Dave
Dave
Re: Takahashi FSQ106ED and Bortle 2/3 skies
A really stunning image, Dave! I see that it is really racking up the views, likes, and comments at AstroBin.
Brian
Brian