I wondered why I hadn’t heard about Affinity Photo and focus stacking - that’s because it’s an iPad-only app, and only newer iPads can run it, so it’s not on my iPad, boo hoo.
Thanks for the reminder about Camera Pixels. I knew there was some reason I got that app.
I’ve been thinking of doing a thread about focus stacking but had not yet got into gear.
I just made a series of focus stacking tests with different apps the other day and it’s true you need to be quite exacting for it to work well. I find that even when I’m being very careful my farthest focus is sometimes not quite far enough.
The one real focus stacking app we have is called StayFocused and it used to work very well, except for the on-line processing. Their server used to routinely produce sub-standard results while PS handled the same set of images with no problem. They have since been rethinking their approach and disconnected the online server. They have another plan in the works. You can still use the app to make the set of focus images but you’re on your own to stack them. Photoshop (on desktop) does the job quite handily but then it ceases to be an all-Mobile solution.
MultiFocus Camera can make a stack of 5 images but it doesn’t put them together.
Focus Camera can make and assemble a 3 image stack but only at low resolution. Close but no cigar.
Live Focus makes a series of shots at different focus distances to let you pick the best focus but doesn’t stack them together.
FocusTwist also makes a series of images at different focus distances but only square, and only to select the best focus. Keep the one you like.
MultiCam makes a series of exposure and focus brackets but after that, nothing. It seems to be broken at the moment.
Prime (formerly called Focus) is a RAW camera with excellent focus peaking so it’s really easy to see where you are focused. It seems ideal to make the focus stack but once you have the set there’s no app to process them.
Camera Pixels makes a speedy set of 5 images at different focus distances but doesn’t assemble them. CameraPixels is the only one that doesn’t let you chose the focus points.
So that’s where we are at present. We now have the onboard processing power to do the stacking but nobody has an app working yet.
For fun here is the first of a 5 image stack. This one focused in front.
View attachment 101666
Here is a finished focus stack processed in (shhhh) PS.
View attachment 101667
You can imagine how useful that would be.
I had another app that made the focus stack and produced a finished result. It stopped working in iOS 11. Unfortunately it made only low resolution output.