Lensational: Tamron’s New 16-300mm is Simply Amazing
The cutting-edge lens design consists of 16 elements in 12 groups and includes three Molded-Glass Aspherical elements, two LD (Low Dispersion) elements and UXR (Ultra-Extra Refractive Index) glass. The unit construction is moisture-resistant and the lens barrel sports a fresh-looking rectilinear grid pattern grip.
I’ve been shooting with it for about two weeks now, with three different Nikon crop-frame DSLRs, including a D5000 that’s been modified for 720nm Infrared use. It’s very sharp and the close-focusing is amazing. It’s surprising how useful it is to have a genuine 24mm wideangle on the short end. It’s going to be tough to go back to shooting weaker lenses.