Got it, Eduardo. I only responded because I have found this Sigma does not exhibit any of the undesirable characteristics typical of third-party lenses, including the color cast I've dealt with when using Tamron and other lenses. None of the reviews from trusted sources I've read about the lens suggest a color cast. I didn't want my workflow and processing of these images to lead you or others to think the lens has a color cast like other Sigmas. Yes, there is plenty of marketing behind the idea that these new Sigma lenses are unlike their brand predecessors, but in my experience it's also absolutely true.