On the second sample I can barely see two faint circles (flares) above and slightly to the left of the horizontal line (cable).


[img]/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.00.24.39/flare.jpg[/img]


OK, try this: while keeping the same filter on the lens, take two identical exposures using the same settings as above, where you have the same or similar kind of source of light(s) somewhere in front of the camera, but before you take the second exposure, remove your UV filter and definitely put a lens hood on. Compare the two, and tell us if the flare is still there on the second image.
Good luck.

P.S. If you want to maintain sharpness, don't go higher than f/10.