Here is the first image of upcoming Tamron 150-500mm f/5-6.3 VC lens.
This lens will be officially announced on Thursday, November 07. This lens will be the successor of current Tamron 200-500mm f/5-6.3 lens. It will have a completely new optical formula, wider at the wide end and the addition of VC will be very welcomed, according to Canonrumors.
via: CR