I confirm the problem.
Tests done on 8 iPhone 16 Pro/Pro Max + my iPhone 16 Pro, as well as on 3 iPhone 16 (non Pro), in iOS 18.2.1. And on an iPhone 14 and an iPhone 13 :
- 7 iPhone 16 Pro/Pro max have exactly the same problem of blurry images at relatively short distances at about 0.8-1.5m (1x, non macro mode), as soon as you go far from center. When you are at a distance that allows both macro and non macro modes, the problem disappears when you switch to Macro mode (still in 1x mode)
- 1 iPhone 16 Pro has it, but to a lesser extent
- 1 iPhone 16 Pro hardly has it at all, though it's there
- No iPhone 16 (non-pro), 14 or 13 has this problem
My conclusions on the origin of the problem :
- it COULD BE a sensor size problem
- But this requires more in-depth tests, with similar hardware (note that a DSLR Nikon D7200 that has a way bigger sensor does not have the problem, as far as this can be taken as a comparison)
- it's NOT a depth-of-field (DOF) problem
- All photos taken with an iPhone 16 Pro (Max or not) from a distance of about one meter or less have this problem on the main sensor. Photos of a flat sheet of paper taken with the camera parallel to the sheet (so DOF non-existent).
- The examples illustrated before in this post are very representative of what I've also seen.
- it's NOT a software processing problem
- The problem is present in ProRAW mode, which corresponds to what the sensor recorded without any software processing over it.
- The problem does not occur on iPhone 14 or 13 series (non-professionals). Same apps, same iOS, etc...
- it's NOT a viewing software problem
- see comment on ProRAW above the problem does not manifest itself on the iPhone 14 or 13 series (non-professionals).
- Same apps, same iOS, etc...
- it's NOT a problem of motion blur, or dirty lens.
- see tests carried out, with meticulously cleaned lenses, and no camera shake. 100% reproducible problem.
- Note that the "trails" do a star-like shape blur coming from the center, when a motion blur make "trails" in the same direction.
- it's NOT a night mode problem
- Same results obtained with or without night mode
The problem disappears as soon as you switch to wide-angle macro mode, typically in the short range of distances where the camera offers the option of switching to macro mode or not. So, for the same photo and distance, the lens used behaves differently: one produces blurred photos as soon as you move away from the center, while the other produces very sharp photos over the whole field.
This is not diffraction, as the “trails” observed are monochromatic, including in ProRaw, and therefore taken as such by the sensor without any software processing.
My conclusion: it's obviously a hardware problem. With a one-in-10 chance of finding an acceptable (albeit imperfect) model. Which is... unacceptable considering the price of the device, and the fact that the non-pro model clearly doesn't have the problem.