04-18-2018, 03:43 PM
A 20/2 is not comparable with a 16-35/4
The Sigma 20/1.4 is also available in native Sony mount, but the Tokina comes with a filter thread. And the Sigma falls short in astrophotography due to coma.
The Sigma 20/1.4 is also available in native Sony mount, but the Tokina comes with a filter thread. And the Sigma falls short in astrophotography due to coma.