If the Tamron 50-600mm is Real, Birders are Bound to Love It

Tamron has created some of the most-loved all-in-one zoom lenses. The company's designs are great, the focus works well, and they are priced well, which works in the favor of many photographers. It now appears they are working on a new zoom lens that can compete with Sigma's models with ease - the Tamron 50-600mm. Here's a quick look.