Tamron has filed a new patent for 100-400mm f/5.6-8.3 Lens, which will be designed for Micro Four Thirds system cameras.
Take a look at the patent details below translated by Google.
Tamron 100-400mm f/5.6-8.3 Lens
[Publication number] No. 2018-185489 (P2018-185489A)
[Publication date] November 22, 1993 (2018.11.22)
Patent application title: ZOOM LENS AND IMAGING DEVICE
Specification and lens arrangement of embodiment 6