Just an image to show how ridiculously huge this Sigma 50 f1.4 Art for native E-Mount is on a Sony A7III (Compared with the Tamron 28-75 f2.8 : r/SonyAlpha
Lens, Tamron, 17HF, 16 mm, 2/3"
Tamron, M13VG550, 5-50mm F/1.4 Mega Pixel | 123 Security Products
Tamron's 17-50mm F4 for Sony E-mount hits stores in October: Digital Photography Review
Buy Tamron SP AF 17-50mm f/2.8 XR Di-II VC LD Aspherical (IF) Lens for Canon EF A16E – Dakauf
Tamron is Working on Five f/1.4 Prime Lenses for Mirrorless Cameras | PetaPixel
6 key points of the 50-400mm F4.5-6.3 (Model A067) starting from 50mm 'standard' focal length | Impression | Special Contents | TAMRON Photo Site for photgraphic lenses