Not sure if you need a "zoom-through" adaptor or not. Century Optics is based in the US and makes some of the most expensive wide-angle adaptors that I know of. I use the Canon WD58 0.7X on my VX2k which works ok for me. See also http://www.bealecorner.com/vx2000/wide1.html

I had a Canon WD-58 when I had my VX2000 up until last year. It is/was a great lens, very sharp and fully zoom-through, no vignetting in the corners. Not that much money on eBay.

I have 2 Sony VX2000's and both have the Sony W/A VCL-HG0758. I use them all the time with great results.

I also have the Canon WD-58 for my Sony VX2000. I like it a lot.

John

I have a Kenko Pro .65X that I use on my VX2000. It's a pretty good adapter. (Avoid the low priced Kenko line however)

To answer your question "Do I need one?":

WA adapters have a couple of advantages at wedding receptions. When you are trying to get a wide shot, there is often not a lot of room to back up, and there are people constantly milling about. The WA can help. Also, WA adapters gather a little more light and can help at dimly lighted receptions, although your Sony cam is already very good in low light.

If money were no object, I would have gone for the Century. Of course, if money were no object I'd be on the beach in Kauai....

I ordered my 170 with the Sony adapter and rarely have used it for weddings.

Most want to see the party and guests closeup rather than a wide shot where
you have to squint to make out individuals. While many effects can be done
post, a few optical filters would be a better investment. Sony WA adapter does
not have threads so you will need to purchase a mattebox to use filters.

The adapter makes your camera very front heavy. Do you have a tripod head that
has an adjustable plate and/or counter balance?

Do you have a really good wireless mic? Perhaps even better investment.

I, too, use the Canon .70x WA adapter. A GREAT piece of glass... zoom through and crystal clear.

HOWEVER.. make sure you keep it clean and dust free.... and make sure you use a wide aperture to reduce depth of field... this lens picks up dust on the glass itself! (you can also use an ND filter when you don't need it to open up the iris).

A brand new adapter is less than $200 from B&H. It is a bit heavy and offsets the balance of the camera, though.

I always thought the heavy weight of the lens was pretty much offset by the humongous battery hanging off the back of the VX2000.

As for whether a WA is really needed, I found that in my "walking alongside" kind of documentary-type shooting, a WA lens reduced the shakiness in the footage. That, and the liberal use of DeShaker, and lots of my stuff looks like it was shot with a Steadicam.

I don't have a wide-angle at the moment, but was thinking about getting one again because, as Riredale says, a .7 or .8 definitely makes stabilizing video easier and it's great for indoor closeup stuff -- also not too distorted at that width.