(news)
![50mmf14.jpg](../../../../_Media/50mmf14_med.jpeg)
Sigma today announced a new version of their 50mm f/1.4 EX DG HSM lens. This represents a complete rethink of the lens, with a new optical formula that avoids the old double-Gauss formula and looks much more like you'd see in retrofocal wide angles. Overall, it looks a lot like another lens in Sigma's new Art series, the 35mm f/1.4. For a 50mm it's a bit longer than you might expect, but Sigma says the payoff is in the way it renders, with lower sagittal coma, lower chromatic aberration, miminal distortion, and high resolving power.
![sigma18-200mm.jpg](../../../../_Media/sigma18-200mm_med.jpeg)
Also introduced was an update to Sigma's 18-200mm f/3.5-6.3 DC Macro lens for crop sensor cameras (Nikon DX). Changes include a shorter focus distance, slightly smaller, and lighter than the predecessor (2011 version).
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