Two reliable sources told me this:
The new Tamron FE zoom lens is damn close (in terms of specs) to the current Sony 24-240mm f/3.5-6.3 OSS FE lens.
This is my speculation (I repeat speculation and not rumor):
1) The Tamron specs might be something like 28-240mm f/3.5-5.6 and has no optical stabilization (the Sony has it). Having 4mm less at the wide end and no OSS would allow Tamron to make the lens more compact and a bit faster at the tele end. I think my speculation is probably veeery close to the real deal :)
2) Or 28-280mm f/3.5-6.3 with 40mm more at the tele ens.
Just a small update on the upcoming new Tamron FE lens:
- specs might be something like 28-240mm f/3.5-5.6 (more or less)
- Has a focus locking switch
- more or less same size as the current 28-75mm lens.