Hi kkmcclintic,
Thanks for reaching out to Apple Support Communities.
It sounds like you're having an issue with the camera on your iPhone.
We're happy to assist.
We recommend checking out the steps in the section titled "Remove the case, accessory, or film and test" from the article here: If the camera or flash on your iPhone, iPad, or iPod touch isn't working - Apple Support
1) Remove any case, accessory, or film that might block the camera or flash or that places a magnet near the camera.
2) Test the camera by trying to take a photo.
3) Test the LED flash:
1. Try the flashlight in Control Center on your iPhone or Control Center on your iPad. On an iPhone X or later or an iPad, swipe down from the upper-right corner of the screen. On an iPhone 8 or earlier, swipe up from the bottom edge of any screen..
2. Tap the Flashlight button 
.
If the flash works only sometimes, open the Camera app and tap the flash button 
to choose a different setting.
We're recommending the steps above because they directly address the issue you initially posted about: the camera on your iPhone is continuously refocusing.
Should the issue continue, follow up with the steps in the section below.
If you prefer, here are some more steps you can try on your own if the camera isn't working. You might still need to contact Apple Support after following these steps.
1. If the photo is blurry, clean the front and back camera lenses with a microfiber cloth. If you see dirt or debris inside the lens or if the camera lens appears to be misaligned or blocked, contact Apple Support to discuss service options.
2. Restart your iPhone, iPad, or iPod touch.
3.Test the camera again by taking a photo. If your device has a front and rear camera, check if one or both isn’t working. To switch cameras, tap the rotate button 
.
Please let us know the outcome after giving the above steps a try.
Cheers!
