I just finished a review of the Zeiss Planar T* 50mm f/1.4 as kind of a counterpoint to the Sigma 50 review. The Zeiss is a few years older (2010) and a very different kind of lens. It isn't nearly as sharp as the Sigma at wide apertures, but does have better bokeh and very nice "drawing. If nothing else, it makes for yet another option in the 50mm market.
Written Review: http://bit.ly/1Al8ouQ
Image Gallery: http://bit.ly/1Al9SoY
YouTube: http://bit.ly/1BgTx7V
Zeiss 50mm f/1.4 Planar T* Review by Thousand Word Images by Dustin Abbott, on Flickr
Zeiss 50mm f/1.4 Planar T* by Thousand Word Images by Dustin Abbott, on Flickr
Written Review: http://bit.ly/1Al8ouQ
Image Gallery: http://bit.ly/1Al9SoY
YouTube: http://bit.ly/1BgTx7V
Zeiss 50mm f/1.4 Planar T* Review by Thousand Word Images by Dustin Abbott, on Flickr
Zeiss 50mm f/1.4 Planar T* by Thousand Word Images by Dustin Abbott, on Flickr

