Has anyone tried this focus wheel

[RoamN]

http://www.irvdesign.com/product/mfr/

I searched on this website and didn't see anything talking about this, does anyone have this focus wheel if so how does it work?

[MalfunctioningHuman]

http://www.irvdesign.com/product/mfr/

I searched on this website and didn't see anything talking about this, does anyone have this focus wheel if so how does it work?
There's a sticky in the subforum just below this one entitled "Focus Wheel." It has all the information you might want to know.

[KingDucky]

Yea I think it's the best one around. What Malfunctioning Human said is right. Here's a link just in case you couldn't find it.

http://hv20.com/showthread.php?t=12497