So phones now have a camera with a 1" sensor. What could go wrong? tldr: It's PHYSICS!
Too shallow depth of field
Too much z depth
Too much light
The solution now?
Phone camera sensors should 'stop' at somewhere around 1/1.5" (yes, the same sensor size as my beloved Lumia 1020 from 2013 - way ahead of its time!) - and this is plenty for all light conditions, as we factor in the huge processor power available, to take (say) 20 photos in a second and then combine them algorithmically to reduce noise and improve colours and clarity.
For comparison, even the current iPhone 14 Pro series, Samsung Galaxy S23 Ultra, and Google Pixel 7 Pro have a sensor size of around 1/1.3", already slightly more than needed and just starting to cause depth of field issues. Going to one inch sensors (and associated apertures) effectively reduces depth of field by other 30%.
Manufacturers will hate this, of course, since they love to improve certain 'numbers' on spec sheets, year on year. But real users are about to find out that bigger is not always better.
And the ultimate solution?
What's really needed, of course, if one can stomach the physicality of really large phone cameras, are variable apertures, i.e. implementing a microscopic iris mechanism to 'stop' down the fast apertures for larger depth of field and limiting light per frame when shooting video. We've seen phone cameras in the past implement a dual aperture solution (Nokia N86, Samsung Galaxy S9, S10 series, and now Xiaomi 13 Ultra), so in principle this can be done.
Whether phone manufacturers join the dots and work all this out remains to be seen.
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