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

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.

I thought that Tamron had outdone itself first with its 70-300mm lens and then with the 24-70mm f/2.8 and 90mm f/2.8 Macro lenses: all bearing the SP (super performance), VC (vibration compensation), Di (digitally integrated primarily for full-frame sensors), and USD (ultrasonic silent drive)...

#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.

A very impressive lens, producing a high quality image wide open at all focal lengths. The lens appears to be a bit sharper at shorter focal lengths than at the long end, but the difference is minor.

Exceptional sharpness; high build quality; good VR; fast and bright; wide open image quality excellent

weight; size

Love this lense. Very sharp in the corners and the image stabilization is incredible. I only wish it was a bit lighter and could take filters, but other than that I can't complain about the results