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| TAMRON 18-270mm F/3.5-6.3 DiII VC PZD |
For this reason, for most photographers with a small compromise on image quality and zoom for the convenience of a small selection. Of course, the easiest of all, but a zoom lens, all the bases, that is exactly what Tamron have tried to do with their 18-270mm f/3.5-6.3 DIII PZD, including VC should give the full title. Enough for most everyday situations, it is designed for use with pesticides (APS-C sensor) DSLR designed a range of focal lengths averaging approximately 28 to 400mm.The image quality with a "Super Zoom" to maintain, because it is a challenge, given the complex nature of the optical design. As a general rule, the higher the zoom factor, the higher the image quality, and the Tamron has a zoom ratio of 15x solid. The big question is: is it?
For a lens with such a large zoom range, the Tamron is remarkably compact and light. Still, it feels pretty solid and good performance, with smooth zoom action, and a decent sized manual focus ring. Manual focus is just a little difficult, but that only takes you a little tour of the minimum focusing distance of 0.49 m to infinity. But autofocus is much more important, because that is how most photographers like this lens. As a landscape photographer, I do not normally use autofocus that often, but for this test I found that Sigma latter system, the piezoelectric disk (PCD) ultrasonic motor confident, focused, accurate and quiet and was only slightly slower than my Canon L - lenses.The lens has a distance of 0.49m minimum focusing distance throughout the zoom range, with a maximum magnification of 1:3.8. Although you want a dedicated macro lens for close work, this means that decent detail and texture are possible to study with this purpose.Another advantage is the ability to Anti-Shake or Vibration Compensation (VC) Tamron call. This was improved in the last version of this goal, according to the manufacturer, you free shots at a speed of up to four times slower than when VC is not used. I was unable to scientific testing, but I can say it's a noticeable difference, and would be a boon for shooting in low light or with the hand holding a camera.
The Tamron is certainly a goal, very versatile and easy to use, but it would be academic, if not compensated by the optical quality. To make a long story short, I am happy to report it. In general, the image quality is very good, especially for this type of lens, and certainly disappointing. I to the focus, showing a great focal length. As expected, his best performance on f/8-11, as the fine, large openings, and once heard a little, little drop in sharpness at the edges and corners. Visually, the only problems I have a bias in the wide and occasionally a green border. Given the nature of the lens, nothing surprises me this, and I found both relatively easy to correct in software. All in all, this is a great versatile lens with a wide range of applications that the location of the different lenses in the camera bag could take. If you are looking for a glass-is-everything and finalists of the Tamron.
Guide price: £660 / Street price: £499
Construction: 16 elements in 13 groups
Maximum aperture: f/3.5-6.3
Minimum aperture: f/22-40
Filter thread: 62mm
Angle of view: 75º - 6º
No. of diaphragm blades: 7
Minimum focus: 0.49m
Maximum magnification ratio: 1:3.8
Dimensions: 74.4x96.4mm
Weight: 450g
Supplied accessories: Lens hood
Fittings: Canon, Nikon, Sony (without VC)
Phone: 01628 674411
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