After my exchange of APS-C on the D300 on the FX on the D800 I (sure like most) also looked around for a new objective, which was to bring me closer to the potential power of the D800. I took the camera first with my old lenses Tamron 28-75mm 2.8, among others, and Sigma 70-200mm 2.8. Both lenses were satisfied from satisfactorily, but nothing more. The current Tamron 24-70 2.8 VR has long been my fave, but had me short for my purposes. So I ordered the 24-120mm F4 on Amazon. Accustomed fast delivery, therefore tested the same test in the studio. When zooming in the recordings (later on the computer) I almost flew off the stool. The sharpness is awesome, never seen the details so. It wobbles and jerky nothing, the weight is pleasant and on the D800, it looks a little like a unit. I am passionate about this and have now Obtik next to the 85er FB a great zoom lens delivers the me in almost every way, Grandiose results. Golden Ring, including and at the price!