B&H Photo is listing the original Tamron 28-75mm Di III VXD as being discontinued. It seems the G1 lenses sold out pretty quickly even after the announcement of the Tamron 28-75mm Di III VXD G2.
Tamron 28-75mm f/2.8 Di III VXD G2:
B&H Photo / Amazon / Adorama
Follow SonyAddict on Facebook, Twitter, Instagram, and YouTube
Plus our owners’ groups
Sony a1 Owners Group
Sony a9 Owners Group
Sony a7 Owners Group