Yes. A very small one, but it's there! 

Hi, this is filter adapter rings, support use larger or small size filter on your lens , not related with camera brand. 

Of course, this camera has a small 2-inch screen for easy viewing 

Yes 

The adapter clicks on the lens. It has a small dark gray colored lever (not the white plastic tab to change aperture), level to the outer edge of the bottom ring accessible when removed from the camera, grab the whole adapter with your left hand and push the lever in with your thumb, and while pushing, rotate the lens with your right hand to remove it. You need to push in that lever to unlock the lens.