I was in Singapore last week, and found a lens in the Duty Free that I could not resist buying. I surprised myself by buying something without a little research, but I don't know when I would go back that way.
I paid about US$ 430 for a Sigma 28-300mm 3.5-6.3 Aspherical lens. It's not a particularly fast lens, but it is very compact (much smaller than the Canon 100-300mm 4.5-5.6 lens I still have), and means I don't have to carry 2 cameras or a second lens for wide angles.
Does anyone know this lens? The weather both in Singapore and now home in Geneva has been lousy, so I haven't been able to try it yet.