Im very surprised with the quality of this lens, im using this lens for video and is awesome!! very Robust, excellent build quality, the image quality is great!! super sharp and bright.

Great build, feels strong, and weather sealing is good addition. VR is great for low light situation. Autofocus is slow in low light however, and image quality is not as crisp as the nikon.

Walk-around, portrait, and indoor lens with fast f/2.8 capability. Replaced (returned) the Sony Zeiss 28-70 f/2.8 for this lens because (a) it cost $ more, and (b) it was 'sloppy' when attached to my Sony SLT A99 at the lens/body interface...it moved at the extreme focal length ranges..

The difference between a "constant" aperture zoom and other standard zooms is that when you increase the focal length on the standard zoom the maximum aperture narrows. This might make the difference between being able to hand hold or not when zooming in, and may indeed force the use of higher ISOs.

This Tamron lens is more than suitable as an alternative to Canon's flagship 24-70 f/2.8 II. The lens is solid, well built, tack sharp, and has the benefit of IS! Images produced have wonderful color and clarity.

Wonderful color; Tack sharp; Nice Solid Build

Zoom ring a little stiff

At the time I bought this lens I needed a high quality 24-70mm f2.8 or faster, with vibration control. I shoot Canon products and read all the reviews. Canon came up short, and did not have a 24-70mm f2.8 with IS. Canon did have a f4 model, but I needed the extra stop.

I recently purchased this lens form Ted's. I will keep this review as simple as possible: Build quality: Very good. Compares to Canon 100 f/2.8 macro, and even feels a tad better built. Also comes with moisture sealing which is very important since the lens extends when zooming.

Easy to use

I took an egg away for the somewhat slow AF and lower image quality (Compared to the Canon). Don't get me wrong though: If you use stabilization a lot this is an excellent choice and bargain! The image quality honestly is quite good (just not as good as the Canon).

Vibration Compensation works great Fast 2.8 Accurate Auto-Focus (on my Canon T3i

Not as good image quality as the Canon 24-70 2.8L II (but close; I think it is at least as good as the Mark I) Auto-Focus seems slow, and not accurate good in AI Servo $1000 or so less than the Canon

This lens is amazing gear for potrait photography. Just got a new one and tried some shots, the results are amazing. The lens is very smooth and easy to handle. It gives a feel of possessing a valuable gear. A must have configuration for street and potrait photographers.

This Lens isn't light but what do you expect from a 2.8 right Lens arrived super fast which was great and compliments my D610 very well. The picture quality from this lens is fantastic, I saw videos on youtube comparing this to the nikon, I was a little skeptical but now seeing it in action its...