I thought it was a very good lens, as far as my old
28 July 2014
Summary: I purchased this, tried it for awhile, then returned it. Even so, I thought it was a very good lens, as far as my old, amateur eyes can tell. It also contained a number of useful goodies in the package. The tripod included with the kit was useless with this lens. The total weight was so great that the pole kept sliding down so that the only way it could be used was bending over. Even without the lens, it was not a tripod I would have purchased on my own.
Summary: Just got the beast. It is a nearly 2Kg lens, which means that shooting by hand is tiresome to say the least. If stabilized correctly, the quality of the pictures is excellent. I attached a pistol remote shutter release to the tripod strip, and handling got a lot easier. as far as the super telephoto lens are concerned, this one is extremely good value for money, since the quality is adequate, the price is ~ 1/3 of any other decent fixed F# lens, and the versatility of...
Summary: I was looking for a long telephoto lens to use with my Sony E-mount cameras (A6000 and A7r), and looks like only Sigma makes those for Sony stabilized (A-mount). The Sony 70-400 is not stabilized relying on the A-mount cameras IBIS, Tamron simply cripples their A-mount lenses by disabling the stabilization - I would call it a pinnacle of stupidity.
Summary: Yes, it's heavy. But if you are comfortable with a 70-200mm, you will instantly appreciate the extra "reach" on both ends. It's not THAT much heavier. While it excels in telephoto work, you can still dial it back and get a "normal" 50mm. Which means less missed shots because they are too close. On the far end, you can get those wildlife shots that need the full 500mm magnification (and probably at least a monopod to steady). And everythhing between.
Summary: Just received the lens and got to play with it. I think I died and went to heaven. Fast auto focus, crisp clear pictures whether at 50mm or 500mm. I can't wait to use it some more. It is a bit heavy but I was still able to hold it to take pictures without a tripod. I will most likely use a monopod if I am planning to shoot for a longer time. I gave up my Sony 400mm telephoto and will be using this on my Alpha 77.
Summary: I've owned this lens for 8 months now. Although, I'll rent the EX 70-200mm f2.8 IS II (unsurpassed image quality) when shooting professionally because of its low light capability, I won't even consider selling my Sigma 50-500mm f/4-6.3 EX DG APO HSM OS (affectionately called "Bigma") to offset the cost of buying the rental lens. With a 10X (ten times 50mm) focal length, this lens covers just about any well lighted shooting opportunities.