The BWG Micro Gimbal/Ballhead Adapter from Jobu Design will balance your SLR or DSLR camera plus telephoto or macro lens at their natural center of gravity, giving you much improved balance and functionality compared to using only your ballhead. This adapter is for lenses with rotating tripod collars, such as a 70-200mm zoom, a 400mm telephoto, or a 180mm macro lens.
The lens must be fitted with an Arca-Swiss-style dovetailed lensplate (not included--Jobu Design NX lensplates are recommended), and an Arca-Swiss style of ballhead with panning base (not included) is also required. Ballheads that use a thumb screw-type quick release (not a cam-lever) to ensure proper engagement and attachment of this product are highly recommended. The panning quality of this gimbal type setup fully depends on the quality of the ballhead used. With the BWG Micro Gimbal/Ballhead Adapter and a high-quality ballhead, you can easily move a 600mm lens using just one finger!