According to Sigma rumors, the Sigma 24mm f/1.4 Art lens is rumored to be announced in early 2015.
Sigma has already announced two prime art lenses, Sigma 35mm f/1.4 Art and 50mm f/1.4 Art for full frame DSLR cameras. Both lenses are best selling lenses, even better than Canon and Nikon versions.
There has been no rumor for a specific ultra-wide DC lens so far.
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