Perigee Moon and Stacking in Photoshop
I had been messaged several times this evening if I was taking shots of the super moon and I of course joked that I can uprez one of my old photos with Photoshop by 14% pretty easily.
But this isn't just about photographing the moon, but on how stacking is done.
This is where stacking multiple images comes in. The idea of stacking is to bring several images together and by a process called Median averaging, you basically average out several images of noise.
Step 1: Depending on what program you use, you'll want to open up all your images into Photoshop. If you used Lightroom, you can tell the images to open into Photoshop as layers as demonstrated by Figure 1. Select all the layers in the layers palette.
You should end up with a result that is sharp and relatively noise free. It should be pointed out that if you're dealing with a slow moving object, you should take as many consecutive shots as possible to avoid any misalignment of your multiple images.
The final results can be adjusted with a slight contrast adjustment and slight sharpening in Lightroom:
|The 12 images stacked (This was reprocessed with less sharpening applied 03-20)|
|Single Image for reference before stacking and processing|