The Tamron 28-75mm lens is a fantastic f/2.8 constant aperture lens! Unlike the Sony G Master 24-70mm lens, the Tamron is a lot lighter and smaller. When paired with the Sony a7iii or other E Mount system camera, it’s a powerful tool! I love the close focus capabilities of this lens and it behaves like a native lens, without requiring the use of special adapters. Many have commented about the “plasticy feel” of this lens but I like it! I travel with multiple prime lenses and having a small and lightweight zoom lens is great! This lens is super sharp! #Tamron