Albert Lazzarini

Hi @JamesR, I am using 5 dark frames and before I stack I used the Bad Pixel Map Tool to detect and flag them. I am happy to share the imagery, but the ARWs are rather large. How can I send them to you? Do you also want the dark frames? The setup I used was a Sony ILCE6000 directly connected to an f/10 telescope with FL of 2500mm. I used bulb setting with an intervalometer to take 20s exposures. Thanks for your assistance. BTW: is there a workflow instruction on how to use the Astrophotgraphy Stack option? I am new to this and it would be really useful if there were a succinct how-to.

However, when I tried to stack 15 Lights taken over a period of 12 minutes the resulting message I get is: Stacking succeeded but some light frames could not be aligned. Light frames stacked: 1 Light frames not aligned: DSC00997.ARW DSC00998.ARW DSC00999.ARW DSC01000.ARW DSC01001.ARW ...

Thank you.

I could not find any documentation on how the Affinity Photo 2 stacking algorithm works. In particular, I have a telescope on an alt/az mount. If I take short exposures, they are individually unburied, but the frame will rotate slightly from image to image. Does stacking take care of alignment and rotation of multiple images?