What We Like
+Fast, silent STM autofocus with reliable focus acquisition and excellent face/eye detection
+Compact, lightweight all-metal construction (232g) ideal for travel and everyday carry
+Wide f/2.8 aperture enables excellent low-light performance and creative depth-of-field control
+Sharp center sharpness at f/5.6 and higher with good overall optical quality and minimal distortion
+Highly affordable at $199, offering rare autofocus capability in an ultra-wide APS-C lens
+Versatile rectilinear design with 105.3° field of view suits architecture, interiors, landscapes, and astrophotography
Worth Knowing
−No optical image stabilization; requires camera with IBIS for low-light handheld shooting
−Focus breathing present and visible in video work; field of view subtly shifts during focus
−Corner sharpness is softer than center at wide apertures; lateral chromatic aberration requires stopping down or post-processing correction
−Steep learning curve for ultra-wide compositions; not suitable for subject isolation or telephoto compression