Sigma 16-300mm f/3.5-6.7 DC OS Contemporary 鏡頭（Sony E）

I was a bit worried about the weight, but it balances beautifully on my Sony body. The autofocus is quiet and fast, even tracking moving subjects. The 16mm wide end is surprisingly distortion-free for such a versatile zoom.

The three aspherical lenses really clean up the chromatic aberration I used to see in my tree photos; sharp corner to corner even at 300mm. Auto-focus locks on fast for wildlife, and the OS works great for shaky handheld shots in the evening.

I've been shooting handheld in mixed lighting and the three aspherical elements really cut down on chromatic aberration—even wide open at 300mm the edges stay sharp. The zoom ring has just the right amount of resistance for smooth pulls during video, which I wasn't expecting from a lens this versati