I notice that people are using the Letus on the canon HV 20 and HV 30. It has a 43mm ring. Would I be able to use my Letus Extreme on one of these? Is there an adapter to go from one ring size down to the smaller?
Bruce Yarock
Yarock Video & Photography (http://www.yarock.com)

There's a Letus mini specifically for the 43mm size. Not sure if that's what you were asking about.

Letus Corporation - The Manufacturer's Main Website (http://www.adapterplace.com/component/page,shop.product_details/flypage,shop.garden_flypage/product_id,43/category_id,11/manufacturer_id,0/option,com_virtuemart/Itemid,56/vmcchk,1/)

Bruce:

I have used a two ring stepdown in past. In my case, a 72 to 58, and then 58 to 43.

Thanks, guys.
Bruce yarock
Yarock Video and Photo (http://www.yarockvideo.com)