Summary: The Sigma 19 mm EX DN is a lens that is comfortable in the hand, solidly finished and that focuses quickly and quietly. This lens has remarkably little trouble with ghosting, even if you do not use the supplied lens hood. For a micro-43 lens, the Sigma 19 mm EX DN is not very compact, but this is precisely an advantage for those who wish to focus manually.
Pros: High resolution in the center, Solidly built and beautifully finished, Free pouch and lens hood, low priced
Cons: No built-in image stabilization, Reasonable performance in terms of distortion and chromatic aberration, Resolution in the corners is less than in the center