Sigma has an impressive history as an innovator and manufacturer of distinctive cameras.
Sigma DP 1 & 2 Merrill Field Test with Nick Devlin
brightness of FOVEON
Foveon Meets "Hypericum monogynum"
SIGMA SD15 with 14MP Foveon X3 sensor : DigInfo
Sigma DP2 Quattro и технологията Foveon