This is the newest addition to my photographic equipment.
The Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical (IF)
As usual for gadgets, this too has a sophisticated long name printed on its box, but basically, the most important information is the 17-50mm f2.8. That said this is an upgrade from the 18-55mm lens you get when purchasing a dSLR Kit.
Di stands for Digitally Integrated, which was specifically designed for digital cameras with image sensors equivalent to APS-C Size.
IF stands for Internal Focusing, making this lens work with the Nikon D40, D40x, D60 and the new D5000.
This lens is very well built, holding it actually feels better compared to my old 18-55mm Nikon Lens.
It has a metal mount, uses a 67mm filter which will not turn as the lens focuses.
Another great feature of this lens is that it has a lock which will prevent your lens from creeping out when stored in a bag.
The lock can only be used when the lens’ zoom is at 17mm.
The Aperture of this lens is constant, it will not change no matter how you zoom in and out. This is very helpful as you focus more on framing the subject that checking if there were changes in your settings.
This lens also has a switch just incase you want to focus manually.
There has been a lot of reviews about some focusing issues on the Tamron 17-50 f2.8 lens so I suggest that you test the lens before making an actual purchase.
Although this lens has an Internal Motor, focusing is a bit slow and noisy! The noise was actually enough to make me think that the lens will transform to a Decepticon after focusing. I bet you won’t mind the noise when shooting outdoors and just remind yourself of this lens’ price when you think the focus motor is too noisy indoors.
The package only came with a lens hood, front and rear covers and an owners manual which states that you should not hold/force the focus ring when the Auto Focus mode is activated.
This is a very good lens and a cheap one compared to the OEM lenses.
Here are samples of pictures taken with this lens.