What We Like
+Ultra-wide 12mm focal length is world's first F1.4 prime for APS-C at this focal length, ideal for landscapes, astrophotography, and vlogging
+Exceptionally compact and lightweight at 225-250g, making it highly portable for travel and outdoor use
+F1.4 aperture enables impressive low-light performance and low ISO capability in challenging lighting conditions
+First Sigma APS-C Contemporary prime with aperture ring, providing manual control and professional feel similar to Art series
+Minimal focus breathing and suppressed flare/ghosting deliver smooth video pulls and clean images in all conditions
+Quality construction includes dust and splash resistance with premium Thermally Stable Composite exterior
Worth Knowing
−Barrel distortion is noticeable, though correctable in post-processing and typical for ultra-wide lenses
−Softer corner performance at F1.4, though improves significantly when stopped down to F2 and beyond
−No AF/MF switch means manual focus must be engaged through camera menus
−Moderate vignetting at F1.4 aperture, though controlled better than competing lenses