While it's not cheap, the Sigma 50mm f1.4 lens provides great value for the money.

It would be nice if it had image stabilization

Purchase use.Very good from F/2.2. Front focus 1.4-2.0. After 2.2 have litle back focus. From f4 focus is perfect. Work very well in life view with Canon 60D. Mutch better than Canon 50/1.8.Very happy.

Consistent Output; Durable

My reaction to every fast lens Sigma release seems to be "I can't believe something this good costs less than $1,000." A new favorite -- the 50mm f1.4 DG HSM -- joins Sigma's Art series of lenses, which already includes two of my all-time sub-$1K favorites, the 35mm f1.4 and 18-35mm f1.8 .

The Sigma 50mm f1.4 lens is a well-designed lens that performs very well for its price

It would be nice if it had image stabilization

Very good

What a whopper! Sigma's 50mm f/1.4 is twice the size and weight of other similar lenses and has a colossal front element promising superior peripheral brightness (reduced corner shading) and improved contrast at wider lens apertures. The finish and the controls are rock-solid.

The pictures below illustrate the angles of view on 35mm full frame and APS-C (1.6x crop) camera bodies. Our observations indicate that the focal length is noticeably shorter than the specified 50mm (probably closer to 47mm):

Class-leading image quality; Relatively low vignetting even at wide apertures on full frame; Reasonably fast and positive autofocus; with full-time manual override; Very good build quality

Large and heavy for a 50mm F1.4; Expensive

The 50mm f/1.4 EX DG HSM is the first large-aperture 50mm prime lens to be manufactured by Sigma and the company has gone to considerable lengths to include the latest designs and technology.

This is an in-depth review of the Sigma 50mm f/1.4 EX DG HSM prime lens that was announced on March 18, 2008 for Sigma, Canon, Nikon, Pentax and Sony mounts. The Sigma 50mm f/1.4 EX DG HSM is a professional-grade lens for enthusiasts and pros that need a high quality lens for portraiture and...

Well, it took two tries to get a properly operating one. The first had serious issues; If I micro adjusted for shooting in the portrait range, it was way out at about 30 feet. If I micro adjusted for 30 feet, it was way out in portrait range.

Dreamy bokeh; sharp right from wide open

AF issues

This high-specification Sigma prime comes with a price-tag to match, but does image quality meausure up? Read the WDC Sigma 50mm f/1.4 EX DG HSM review to find out

Imposing presence

Distinctly heavy