I’ve tested lots of 70 or 75-300’s over the years and they’ve all showed more or less the same characteristics - good to great at the short end - poor to awful at the long end. Tamron is a name I have great respect for, and their 70-300 gives a much more even performance.

Of all the Sigma, Canon, Nikon, Tokina and Pentax something to 300 zooms I’ve used - The Tamron, while not really sparkling anywhere, is completely useable at all focal lengths even at full aperture.

Despite it’s very lightweight price and construction it does have a metal mount and the lens hood is included in the price. This is a good rather than great lens. Not simply stunning anywhere - like the Sigma APO at 70mm - but not terrible anywhere either. Stopped down even to f8 performance is very good indeed at all focal lengths.

Test Images