Can anyone recommend the best fish eye lens to get for shooting some skate videos? Like the most common size (between .43x and .3x?) for that.

Lots of options and they are pretty costly for something I will only use for 1 type of filming:
xha1 fish eye (http://www.bhphotovideo.com/c/search?Ntt=xha1+fish+eye&N=0&InitialSearch=yes)

This one looks nice:
http://www.youtube.com/watch?v=A01_UhDIKz4

Thanks

For the XH-A1 I suggest these:
Canon XH-G1 & XH-A1 Attachments - Schneider Optics (http://www.schneideroptics.com/century/dv/xh-g1/xh-g1.htm)

The ultra fisheye is .3x, and vignettes.

The fisheye that does not list magnification is .45x I believe and does not vignette. (Though on this one B&H incorrectly lists the magnification at .3x if I remember. Call Century in Van Nuys for exact information.)

All of the Century stuff can be bought at B&H for a discount off of retail.

I have the .6x WA from Century and it is excellent for what I want. The Century bayonet mount on these adapters is excellent... much better than threaded alternatives.

Thanks for the feedback Jack.

I think I like this one:
Century Precision Optics | 0HD-FEAD-XLH 0.3x | 0HD-FEAD-XLH (http://www.bhphotovideo.com/c/product/488699-REG/Century_Precision_Optics_0HD_FEAD_XLH_0HD_FEAD_XLH_0_3x_Ultra_Fisheye.html)

Can you send me a link to the Century bayonet mount your talking about please?

Anyone else used this company / lens and like it?

Thanks for the feedback Jack.

I think I like this one:
Century Precision Optics | 0HD-FEAD-XLH 0.3x | 0HD-FEAD-XLH (http://www.bhphotovideo.com/c/product/488699-REG/Century_Precision_Optics_0HD_FEAD_XLH_0HD_FEAD_XLH_0_3x_Ultra_Fisheye.html)

Can you send me a link to the Century bayonet mount your talking about please?

Anyone else used this company / lens and like it?
The bayonet mount is house this adapter attaches to the camera. It is bulit into the lens. It comes that way.

I have the Century Optics .3x fisheye designed for the XH-A1, and I love it. I film for DC shoes, and amateurs around where I live that are flow for companies.
Century Precision Optics | 0HD-FE3X-XLH 0.3x | 0HD-FE3X-XLH (http://www.bhphotovideo.com/c/product/488701-REG/Century_Precision_Optics_0HD_FE3X_XLH_0HD_FE3X_XLH_0_3x_Ultra_Fisheye.html)