First of all, I do love my iPhone 10s for many reasons, This is not a review of the phone, but a review of it’s usefulness as a camera. For most amateurs and for professional images in a pinch, it works very well. However, I had higher expectations.
On a recent tour in Costa Rica, I shot both with the iPhone app and with ProCam 6. The iPhone app uses the new HEIC compression. In my opinion, HEIC still suffers from JPEG-like artifacts. I see halos around dark objects on light backgrounds. It also seems to create smear distortions in low light.
I purchased ProCam 6 because of its capability to shoot raw images. ProCam 6 has fewer issues with halos, but there is significant noise in the DNG (RAW) images. This impacts the overall sharpness of the image. This is an unexpected result for a raw image.
The bottom line is that the iPhone 10s is fine for my street photo Instagram posts, but the images are not good enough for print or digital competition. I would not show them in a gallery either because the artifacts will be evident in high quality prints. I am happy that I lugged my Nikon D750 along on the Costa Rica tour.