There are many ways to stretch you stacked raw linear astrophotography images in photoshop. However, in my opinion there is only one BEST way, and that is using the arc-sine hyperbolic technique which is covered in this video. I use a ZWO ASI 294MC Pro astrophotography camera and the narrowband triad ultra filter and this technique is my go-to way of stretching my asto images in photoshop.
Link to Mark Shelly's website: www.markshelley...
28 авг 2024