A German Youtube reviewer posted their Tamron 17-28mm f/2.8 Di III RXD FE review a little early. Bellow are excerpts from the video if you do not want to watch it translated (warning it does not translate well):
- The Tamron is priced very well
- The Tamron is more compact
- The Sony corrects its lenses in camera
- The Tamron 17-28mm will pair well with the 28-75mm and they look the same
- Not really fair to compare the price of the Sony 16-35mm against the Tamron 17-28mm
- The Tamron is equal to the Sony 16-35mm at 17mm and sharper around the border
- Tamron is equal to Sony at 28mm and sharper around the border
- The sweat spot for 17mm is f/5.6
- Shocked at how well it performs for the price
- Great for shooting astrophotography
- Colors look are very neutral
- They compared the Tamron 17-28mm, Tamron 28-75mm, Sony 28mm f/2 and Sony 16-35mm
- The Tamron is sharper than a prime Sony 28mm f/2.0 prime and the Sony has more chromatic aberration
- AF is fast and reliable
- It’s great that the Tamron 17-28mm and 28-75mm have the same filter diameter
- Great for APS-C a6400, a6500, a6300, etc…
- You get a lot for your money
- Over all an exilent lens
Tamron 17-28mm f/2.8 Di III RXD FE: B&H Photo / Amazon / Adorama