A:Answer58mm
But a UV filter is really only of any use to protect the front element. And seriously, studies have shown that short of shattering it, front element damage like scratches don't affect image quality. None of the pros I know use a UV filter.
I wouldn't bother. Save the money you save and put it toward a fast prime lens.
A:AnswerIt does have a flash built onto it! It works pretty well too. I have a spare flash that I only use when I'm trying to get an extremely exposed picture. Hope this helps!
A:AnswerThis one doesn't have the cool remote option but you can make it one with a small aftermarket kit by Altura, Altura Photo Wireless Flash Trigger. This kit can work with just your camera, just your top mounted flash or both.
