Is the Tamron 24-70mm f/2.8 G2 worth it over the Nikon 24-70mm f/2.8E?

It adds optical stabilization, which the Nikon lacks, and costs far less while staying sharp in the center. The Nikon is sharper in the corners wide open and lighter; the Tamron wins on value and handheld low light.

Does the VC stabilization work on all Nikon F bodies?

Yes, vibration compensation works on Nikon F DSLRs, and it is a clear benefit for handheld shooting. On mirrorless bodies via an adapter, stabilization behavior depends on the adapter and camera.

How does it compare with the first-generation Tamron 24-70mm f/2.8?

The G2 has revised optics, faster USD autofocus, better moisture sealing and a fluorine coating. It is also heavier than the original, but reviewers see it as a clear step up in build and focus speed.

Is it good for portraits and weddings?

Yes. The constant f/2.8 and nine-blade aperture give shallow depth of field and smooth backgrounds, and the 24-70mm range covers groups and tight portraits. The weight is the main trade-off for a full day of shooting.

The lens comes with its front and rear caps and a lens hood. A pouch and tripod collar are not included.

Can I use it on a Nikon Z camera?

Only with an FTZ adapter, and autofocus performance varies by Z body. Native Z-mount lenses are the better long-term choice if you are moving to mirrorless.