Hi. Thanks for your response

Actually it's for a music video I am "attempting" to put together.
The song is called "Drawing down the moon", hence the woman with arms upraised towards a full moon.
I'm probably trying to do the impossible because my camera, compared with what I'm sure a lot of people on this forum have, would be laughable :(
I did some reading here throughout the forum and thought perhaps the "bulging" in and out thing might be because I had the camera on automatic focus (I told you I'm a complete novice, lol!)
I tried tonight on manual focus and it didn't bulge anymore

but I'm seeing rays of light coming from the moon. Not what I want !
I think it might be a case of that I just don't have a good enough video camera for what I'm trying to do.
I might have to think of a creative way of filming this inside.
I've had some success using a blue light.......kinda gives that eerie "blue moonlight" effect?
I just really wanted the moon!