
Tamron published a patent P2018-185489A for a 100-400mm f/5.6-8.3 MFT mirrorless lens. Tamron also has two new patents (P2018-169563A and P2018-169564A) that could be for new versions of the following lenses: 100-400mm f/4.5 – 6.3 Di VC USD 150-600 mm f/5-6.3 Di VC USD