The price of perfection – why I would lug the 3-pound Sigma 135mm f/1.4 portrait lens

Sigma's bokeh master is a hefty and pricey bit of glass, but it can shoot some of the dreamiest portraits you'll see ...

I tested the Sigma 12mm f/1.4 – it's a perfectly portable prime for APS-C cameras, with a fast aperture for city and night shots

The world's widest autofocus lens for APS-C camera with f/1.4 aperture is a dream for astrophotography and city shots ...