Nikon has added an odd 58mm f/1.4 to their line up, and according to Nikon, this is a perfect fit for the portraiture and video market.
Perspective is one of the key advantages Nikon sees for photographers. Nikon positions this lens as an update to the acclaimed manual Nikkor Noct-NIKKOR AI, discontinued in the late 90s, as the sweet spot between the 50mm and the 85mm. This lens provides good perspective with enough telephoto characteristics to engage the subject. While the narrow depth of field allows you to pull the subject out of their surroundings. When used on a DX-format D-SLR, or when set to DX mode on a D800 for example, its 87mm focal length makes this an idea portrait lens.
Bokeh is the highlight of this lens when shooting wide open with its 9 blade rounded aperture. This creates beautiful aesthetics in the out of focus areas for both low light portraiture and HD video.
Low light sharpness and good contrast was the highlight of the Noct-Nikkor 58mm, and Nikon aimed to reproduce those same benefits in the 58mm 1.4G. With the latest nano crystal, aspherical and super integrated coating, Nikon has put the latest technology and techniques into this compact package. Unlike the previous 58mm Nikon has included autofocus. At $1,800, this lens is not cheap but still beats out the manual focus Noct-58mm now topping $6,000 used.
I can see myself replacing my 50mm with this 58mm lens on my D800 especially when I'm out taking urban night photography. I think I'll leave my 35mm on my D2Xs and just bring my 70-200 along with me when shooting nature photography. That covers my my entire day and night of nature and portrait photography with just two cameras as three lenses.
Have a look at the Nikon website for additional details.
MSRP - $1,799.95