I borrowed a Sigma DP1 which has this X3 sensor a long time ago. The colors are unbelievably good even today when viewed on a 4K OLED TV. However it was not wit

I borrowed a Sigma DP1 which has this X3 sensor a long time ago. The colors are unbelievably good even today when viewed on a 4K OLED TV. However it was not without its problems, the photo quality degraded very quickly once you increased the sensitivity above the base ISO, and the autofocus was quite slow. Still, it was worth it for the amazing photos it produced.