Macro Capabilitiesīefore looking at the super-tele performance, it’s best to talk about the most surprising thing about this lens: the superpower that makes it more valuable than it appears at first glance. A zoom lock is appreciated, but it would have been most helpful to lock anywhere in the range. If you set the focal length to anything but 50mm, you can’t lock the lens, and if you walk around, the lens will eventually “creep,” meaning it will change focal lengths as gravity pulls the extending barrel downward.
Wildlife photographers often set the zoom to the correct length while waiting for an animal to arrive. That’s fine for keeping the lens in its most compact form while walking around, but many super-tele shooters know that setting the zoom to a precise spot and leaving it there is critical to this type of photography. This lock switch is my only real complaint about the lens, as it can only lock the focal length at the 50mm setting. There is a focus-hold button on the barrel, a switch to control the Vibration Compensation (VC – Tamron’s term for image stabilization), three custom switch settings, a USB port (for communicating with Tamron’s lens-control software), and a zoom lock switch. The lens takes a 67mm filter, a common size, making it easy and affordable to get neutral density and other filters.
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