In one day after placing the order i realized that the UV filter i chose was wrong. They replaced it with a right one (which was more expensive) and did not charge me additionally! The camera and lenses were in brand new condition. Delivery was fast. The price was amazing.

Very fast and flexible

BACKGROUND I had been looking to replace the so-so kit lens on my Canon 400d and agonised over the possible options for several weeks. I wanted a lens to broadly replace the kit lens range of 18-55mm - with a good wide angle and some telephoto zoom, but not too much of a range so that optical...

Image sharpness; constant f2 .

Some distortion at widest setting; motor noise

I bought this lens in Edmonton from the new Vistek store in August this year. I thought that I would try it out first. The bench test reports are true to their words. This is an excellent lens and it only cost a fraction of the Canon brand. I realise the Canon lens has IS.

The product is great because it has a very wide aperture for a zoom lens, without breaking the budget! It's also a constant f/2.8, so you have great aperture even when fully zoomed in.

This lens is performs astoundingly according to my desire. Pictures are pretty sharp and fit splendidly into my sort of photography -nature, nightfalls, and architectures. All things considered, I am content with the lens and utilize it as my essential lens.

The Tamron AF 17-50mm f/2.8 SP XR Di II LD Aspherical [IF] is a very serious performer capable to deliver very sharp images at all focal lengths. Vignetting and distortion are about average for a lens in this class. CAs are a bit on the high side towards the short end of the focal range.

Outperforms similarly priced lenses, but quality control could be an issue

Fast f/2.8 constant-aperture; Good sharpness

No full-time manual override

After using it for around 3 months, have to say it is not at all impressive. May be I hv a bad copy, but this lens consistently churns out average photos. Either go for Nikon (which is costlier but impressive output) or stick with cheaper Nikon 18-55.

This is a great lens to take a step up from stock.

There are many similarities between the Tamron 17-50mm f/2.8 XR zoom and Sigma's 18-50mm f/2.8 EX, not least because both use professional-grade optics. Deeper under the skin, they share a seven-blade iris and have almost the same dimensions and mass.

Compact and keenly priced

Slight stiffness on zoom ring