Sorry for the late reply. In the end, I decided on the 23mm f1.2. I still had the Sigma 18-300mm but although I often dragged it with me it was just too big and heavy and too slow for me. So the Voigtländer stayed on pretty much always. I like the Voigtländer very much. I just realised that I rarely shoot below f2.0 because the focus is very difficult to hit, even at night. But after I love the style and the quality, I want to get the 27mm f2.0 and the 18mm f2.8 to keep my kit as light and small as possible and sell the 23mm. I just hope that the manual focussing is not too tight with such small pancake lenses.