[stoppingdown]

Specs and diagrams:

https://www.sonyalpharumors.com/the-new-...ctober-19/

[Rover]

Now, what do you think is the more likely way of having this lens released in Z mount: rebadge or straight? :-)

[fotorrhoe]

https://www.tamron.com/global/consumer/n...30824.html

Looks quite "long" (as usual) despite them stating that it's compact.

I suppose this will kill their own 20-40mm f/2.8

Very long (114 vs 87 mm, almost exactly as the 28-75!) 100g heavier and f/4.0.
Not enough for real estate, museums, churches and other historical interiors as well as city nights.
I passed on the Sony 20-70/4.0 and will for this 17-50/4,0 but keep my 20-40/2,8.