The photo is the proof. A striking shot labelled shot on iPhone tells owners their own phone can produce this, no new gear needed. The word correct implies their current settings are wrong, which adds a quiet push to check.
How the packaging works
Title
The title promises the right settings and hints the viewer's are wrong.
Thumbnail
The thumbnail is itself an impressive photo stamped as taken on an iPhone.
Remix this
If your niche has a visible result, make the result the whole image and let it prove the promise. The demo must genuinely impress or the click dies.