It's inexpensive for an f/2.8 lens, and has the added bonus of optical stabilisation...

Constant f/2.8 aperture; Fast; high-torque autofocus; Handles with smooth precision

Some sharpness issues when wide open

If stabilization is key to your work, the 15-30mm is the way to go. If it's not, you should think about some other options. The Sigma 14-24mm F2.8 DG HSM Art is a better lens at the same price, and even if you don't use a high-resolution camera now, it will hold up better in the future if you...

Bright f/2.8 aperture; Optical stabilization; Ultra-wide angle of view; Full-frame compatibility; Fluorine coating and all-weather build

Only sold in Canon and Nikon mount; Bulky; Image quality suffers on high-resolution sensors; Heavy barrel distortion; Nikon version doesn't support rear filters

What We Love: The constant F/2.8 aperture on this lens was our favorite feature. It performs well in less-than-ideal lighting scenarios and the image stabilization only sweetens that performance. It is also very sturdy and has an impressive six-year warranty.

AF is reliable and fast; Solid; durable construction; Minimal signs of chromatic aberration on images; Constant F/2.8 aperture

A bit heavy, if you are shooting video with it you will want a tripod; Handheld shooting or shoulder mount shooting for long periods of time isn't ideal, Pricey compared to other Tamron lenses

Tamron's new SP 15-30mm f/2.8 Di VC USD G2 lens ($1299) continues a trend that many camera and lens manufacturers have embraced in recent years. This new Tamron 15-30mm lens is fast, big, expensive and designed for photographers who expect optical excellence.

This lens is really great. Its lighter than its competitors, its got stabilization and great image quality. But its not without some cons, whether it changes your mind about buying it, is up to you. But, at f2.8, its soft.

With an optical construction of 18 elements in 13 groups, inclusive of XGM (eXpanded Glass Molded Aspherical) element placed at the front group and several LD (Low Dispersion) glass elements in the system, aberrations such as geometrical distortion and lateral color are efficiently compensated for...

I have had this lens now for slightly over a year before I decided to write this review in order to be honest as I can. Now at this point when I read some of the bad reviews about sharpness, I can only assume that they got a a flawed version as I found my version was at its sharpest from F4 to F13.

One of the best lens you can get for an a mount , a99ii is my camera and this lens is tack sharp wide open, use it for landscape and other work, thanks Tamron for Filing the need of A mount users. Its a big lens and heavy if your hauling it around all day long but well worth the asking price.

#sweepstakes - First, let me say I love all of my Tamron lenses, and the 15-30mm has been a great addition. I've had it for about 2 months now, and I've used it almost every time I've gone out.

My favorite lens with an amazingly sharp picture, as I wanted. Funny enough price for quality equipment

Doubtful stabilizer; To be honest, his work is almost not visible; If rapid change in focal length gives off an unpleasant \"plastic\" sound

A very sharp throughout the entire range, specific features in the wide-angle, 15 to 22 mm; Chromatic aberrations are minimal and easy to ruling in DxO; Perfect lens for interior and - especially landscapes; Excellent detail, qualitative study of overexposed parts in the sky.