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.

The Tamron SP 15-30mm F/2.8 Di VC USD is a fast ultra-wide angle zoom lens for Canon and Nikon full-frame DSLR cameras. It features a constant aperture of f/2.8 throughout the range, Vibration Compensation (VC) technology, an ultrasonic focus motor for quiet AF operation, and a moisture-proof...

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.

Have used this product now for a week plus. The results are amazing. Captures full breadth of the scenes. Sharp corner to corner. Am getting good results so far.

#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.

This ultra-wide angle lens from Tamron sports a fast constant aperture of f/2.8 and as it is one of Tamron's 'SP' lenses, it sports rugged build quality and a dust and weather sealed construction.

Excellent sharpness throughout the range in the centre and towards the edges when stopped down; Effective Vibration Compensation system; Good value; Robust build quality; Moisture resistant construction

Not as sharp towards the edges at maximum aperture; Slight wave to distortion pattern may make corrections more difficult to apply in software afterwards

With a close focusing limit of 28 cm, this lens isn't ideal for shooting close-ups and bokeh is seldom a highlight of fast, wide-angle lenses. Nevertheless, out-of-focus highlights were quite pleasing in shots taken with f/2.8 at the minimum focusing distance.

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.

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