Sigma 17 40mm f1.8 › AF Noise
9 positive · 2 mixed · 3 critical mentions across 14 sources.
An 11 rounded blade diaphragm for the bouquet performance and autofocus is handled by Sigma's HLA or high response linear actuator which means it has high-speed silent autofocus.
It focuses silently and accurately.
This new lens features Sigma's most up-to-date linear focusing motors, which means it is focused by wire, which isn't too surprising.
Read the full sourced terrain: Sigma 17 40mm f1.8 review.
Counts are drawn from the sources we track and reflect what reviewers said, not a score — AskMaddi charts the terrain, it does not rate.