Sigma has introduced two new compact cameras, the Sigma sd Quattro and sd Quattro H. Both models feature a Foveon X3 image sensor and are promised to offer high image quality, doing so while retaining a travel-friendly size (sans the lens, that is). These interchangeable lens cameras provide a bit of the best of both worlds, keeping the weight burden low while enabling photographers to switch lenses as situations demand.
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https://www.slashgear.com/sigma-sd-quattro-cameras-pack-major-features-into-a-tiny-body-23428718/
