I received a tip that Tamron is rumored to announce a new 20-400mm f/4-7.1 Di III VC VXD 20x super zoom lens. The new lens, which is scheduled for release this November, should weigh approximately 1 kg and have image quality similar to that of the new 28-300mm lens.
Tamron already made an 18-400mm f/3.5-6.3 lens for DSLR cameras.
Tamron recently announced the 50-400mm f/4.5-6.3 lens.
