The Canon WD-58 is very sharp on the VX-2000 and
it is "zoom-through" (and about 1/2 the price of
the Sony VCL-HG0758 - mine was $170 at B&H).
.7X, though, so not very wide. The non-zoom-through
Sony VCL-ES06 works well with a 58->52mm step-down
ring, is sharp, cheap, and is noticeably wider.
BTW, I just put a review of the VX-2000 on my web
page, at:
http://www.David-Ruether-Photography.com/camcorder-comparison.htm