Sara Wager explains, simple and short, how you can register images of different image scales, focal lengths and field of views in Astro Pixel Processor.
“In this video I show you how to easily register images that have a different size, resolution, image scale etc. Perhaps this would be useful to increase the detail and resolution in a specific target within a larger image. I have generally used Registar for this, but APP does it easily and without fuss.”
APP really shows his strength when you try to combine data of different optical configurations.
Two examples of images created using data of several different setups of different astrophotographers. All calibrated light frames were registered without a single frame that failed and without loss of Field of View due to possible stacking artefacts thanks to the MBB and LNC algorithms.