A:AnswerThe Contemporary lens is $989.99, the Sports lens is $1,999.99.
The description of "Sigma - 150-600mm f/5-6.3 Sports DG OS HSM Contemporary Hyper-Telephoto Lens for Most Nikon SLR Cameras - Black" is confusing, but this is the Contemporary Lens (price gives it away).
A:AnswerYes, it will work with D7000 but it will be the equivalent of a 225-900mm lens on the D7000 because of the crop factor of the D7000’s APS-C sized sensor.