In two days (February 20) Tamron will announced their next new FE autofocus
lens: The Tamron 17-28mm f/2.8 Di III RXD for Sony FE. I have no images yet
but this is for sure going to be an exiting and much cheaper alternative of
the 16-35mm f/2.8 GM lens.
I have no info on the pricing yet but the lens will be quite a bit smaller
and lighter than the Sony although the focal range is smaller too. Still this
lens is meant to be used for travel and that’s why Tamron did prioritize the
size and weight.
This will be Tamron’s second FE zoom after the 28-75mm FE.
來源：
https://www.sonyalpharumors.com/tamron-17-28-f-2-8-di-iii-rxd-for-sony-fe/
17-28 + 28-75 !!!