I appreciate the work you put into this!I suspect that you are correct. The problem seems to come back to this again and again. By forcing HDR on some shots, the camera module and processor inside the iPhone is layering images that capture various values withing the scene, sometimes resulting in poor calculations when combining media with detail with shots taken for illumination and lighting. There DOES seem to be an additional issue of the camera AF refusing to work properly...
Something else I noticed with using the ProCam App is that I could feel the OIS mechanism vibrating inside the camera when I shifted it with my hand. It's not something I could feel when using the native Camera App. I'm curious to figure out why that is happening as well.
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Last night I conducted a comparison from my desk. It wasn't particularly scientific but I think it applied well to the real world. Every single picture I took was from a seated position with both hands holding the phone very carefully. The AF reticule was allowed to rest and lock exposure and focus before I took each picture. The target zone was the face of this wristwatch. I was surprised to see that every single picture from the Camera App using the 3x Lens was smeared. Some were worse (far worse) than others. The same applied when JPEG was selected instead of Apple's preferred HEIC files. Here's an example of one of the cropped JPEG images...
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Switching to the ProCam App instead, I took three pictures using the TIFF (TIF) format with the SMRT feature turned off and on. All of these shots were somewhat ideal. Certainly what I would expect from the iPhone 13's cameras. Especially the 3x (77mm) f/2.8 camera.
As far as I am concerned, the problem lies with Apple's algorithms and computational software. If I can get virtually perfect shots with the ProCam App, or at least shots that match the best images from the Apple Camera App, then I'm happy to keep using this smartphone... but Apple needs to SORT THIS OUT A.S.A.P. You can see the full scene below - but the method used to try to nail the AF on each shot was perhaps even more stable and careful that the methods used by the average shooter. I'm both disappointed that I can't trust the Apple software/app and happy that I can at least be assured of reasonably good results from the ProCam app that I bought years ago. But as for *Apple, I find this completely unacceptable. * (Apple is welcome to reach out to me on this.)
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Regards,
Marco
While I am disappointed in Apple that they shipped such great hardware with poorly tuned software, I am also relieved to know that this issue can be resolved with a software update.
So the next step is getting Apple’s attention. Because this will all be for naught if Apple doesn’t act on it.