Summary: An amazing lens, this packs every focal length you could need into one solid lens. I've used it for photojournalism and have produced some outstanding images. Sharpness is really good, AF speed is solid, and the lens is very compact when walking around. Having 450mm equivalent focal length is great for sports and wildlife. I highly recommend yo try this lens.
Excerpt: Good, all purpose walk around lens - can be used in almost any circumstance. Good sharpness through range. Just a bit "clunky" in autofocus at times, but nothing major. Still getting used to variations in depth of field through range but that is probably more a matter of practice than a problem with the lens - it has a very extended zoom range.
Pros: Easily Interchangeable, Lightweight, Strong Construction
Excerpt: This lens is perfect for everything that I do. I live on a lake and when taking pictures of the wildlife, I am constantly going from close up to zoom and moving to stationary. This lens is actually the second Tamron 28-300mm lens I have bought. The first was for my film SLR many years ago and finally felt I needed a new one. It could only be better as a 28-400mm.
Pros: Durable, Fast / accurate auto-focus, Lightweight