Third party photographic lens maker Tamron has just announced that it was going to start developing the largest zoom ratio lens ever made for a SLR camera : 16-300mm model that boasts a whopping 18.8x zoom capability. For the record, 18-300mm models are now a dime a dozen but, as any photographer knows, 2mm can make a lot of difference on the wide-angle end of the focal length. The lens, to be officially known as the 16-300 f3.5-6.3 Di II VC PZD Macro will, in addition to its huge zoom range, also feature the latest in other technologies, as well.
So, what about the new lens?
For starters, the new lens will, as its name indicates, feature two of Tamron's latest innovations: Piezo drive focus, weather-sealing, and image stabilization, both of which will come in extremely handy for a lens of these unique specifications. Tamron's Piezo Drive AF (PZD) is a variant of the traditional ultrasonic drive AF. The chief benefit: a smaller focus mechanism (which means a physically smaller lens) not only allows for quiet, fast, and accurate focus, but also for full time manual override of the AF, which means that one can manually focus the lens without ever flipping the switch from AF to MF mode. As for the Vibration Compensation (VC), Tamron promises that it will help offset camera shake (and thus blurring) caused by the hand movement, which can make taking picture with a 300mm f6.3 lens a bit of a challenge. Weather sealing? That's self-explanatory.
As for other features, Tamron's new lens will feature low dispersion glass (4 of the 16 elements), optical coatings, a 7-blade rounded diaphragm, and excellent close-up capability that can render images at one third life size.
Want one yet? Unfortunately, pricing and availability are still TBA.
For more info: