While it's not cheap, the Sigma 50mm f1.4 lens provides great value for the money.
The trio of Foveon-based cameras announced in February are priced similarly to their predecessors.
Pricing not available
The 50mm delivers sharp photos at almost all apertures.
As long as it stays at a sub-$1,000 price, the Sigma 18-35mm F1.8 DC HSM lens will be a great deal for photographers using APS-C dSLRs.
The revised 18-200mm f3.5-6.3 macro lens sports the same fit and finish as Sigma's latest models.
The company brings its 18-200mm macro and 50mm f1.4 lenses up-to-date for 2014.
Versatile, sturdy, and built with high-quality optics, the Sigma APO 70-200mm F2.8 EX DG OS HSM offers a good value, although it's not exactly cheap.
The general-purpose zoom lens costs about $100 more than Canon's equivalent, but Sigma thinks its image quality means the lens is worth the extra money.
Featuring the same focal length as a popular model from Canon, the new Sigma 24-105mm lens looks as though it will be a fierce competitor to the old workhorse.
The new lens, part of Sigma's high-end "art" product line, will ship in November, but its true competitiveness won't be known until Sigma reveals its price.