Black dot on iPhone 11 camera

Hey there oshi16,

Welcome to the Apple Support Communities!

It sounds like there is an issue with the image quality of your camera on the iPhone 11.

While a repair or inspection is possibly going to be the best option, you can try the steps here to clean your device, including the camera lens to make sure there isn't something on the lens: Cleaning your iPhone - Apple Support

If you still see an issue with the images after cleaning your iPhone, you can try removing any cases you may have installed and check if there are any protective film or screen covers interfering with your cameras.

From there, check with Apple Support for assistance with repair options and inspection of your iPhone through their link here: Get Support - Apple

We hope you have a great rest of your day!