The new system is attached directly to the lens element. Usually IS uses magnets attached to the IS lens element with electromagnetic coils. Tamron claim that the new VC system is lighter and smaller thanks to a complete reversal in how the system operates. It does that for around a second after you've locked focus before resetting. It's an active type that will visibly steady the shot in the lens for you to see. It works very well in the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens.
VC is Tamron's version of an image stabiliser. The other two switches are to toggle the AF/MF and VC on/off. At 18mm we didn't experience any lens creep but we did get it from just after the 35mm mark when the lens has come out a sufficient amount. The first is a simple lock to keep the lens at 18mm by placing the switch into a carved divot in the barrel. Towards the back of the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens are three switches.
The side of the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens The Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens in-hand There are seven aperture blades for the aperture range which has a minimum of f/22-f/40. That's a lot of glass for the image to go through and is under continuous threat of dispersion. The rear element is surrounded by a metal lens mount and hides 16 elements in 13 groups. It is balanced though, which is important. It certainly doesn't feel weighty in the hand. This new version of the lens is also 100g lighter rolling in at 450g. Rear of the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens The Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lensįront of the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD lens The lens has been reworked from its predecessor and is now slightly smaller, 24% to be precise, while the filter thread has also been decreased from a professional level 72mm to a more affordable 62mm. That's where the Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD comes in. But what about the amateur photographer who can't afford a lot of expensive prime lenses or someone that wants to go on holiday and enjoy the convenience of a wide zoom range without the bulk of half a dozen lenses. It's been well documented that professional photographers aren't all that keen on zoom lenses. The Sony model comes without the VC image stabiliser because Sony cameras have it already built into the camera body. Boasting features such as Piezo Drive focusing motor which - Tamron say - gives faster and more precise focusing and a restructured image stabiliser to fit into a smaller, lighter body, the Tamron 18-270mm f/3.5-6.3 DiII VC PZD costs around £399.95 and is available in Canon, Nikon and Sony fit. The Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD is a 15x optical zoom lens designed for crop sensor DSLRs.
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