It depends on the format and type of wide angle converter you are using (I’m assuming that you are not meaning a separate true prime lens here – if you are then ignore the rest of this post).
I have used a .6X WA converter with my SD (at 4:3) camera without a problem. On my HD (at 16:9) camera, it does create a slight fisheye (at the far edges).
What camera (specifically what aspect ratio) are you using?
My converter was only $40 on eBay ($100 from Sony) and is a branded Sony adapter but as I said, it is not prime lens but a converter. True lenses are another story.
You could try a lesser conversion adapter – say 0.75X or 0.8X and see if that works for you.
