I was at the Tate Modern yesterday and I met up with a street photographer from another photography forum. It was interesting looking at his gear and lenses. He uses a Fujifilm XT2 with the tiniest of tiniest lens I've ever seen, a 23mm f2 lens. He also uses a zoom lens, I think it was also Fuji, 16 to about 50 or 55, f2.8 to f4. Anyway, he's much more experienced than me and so I learned a few things, in particular about focal lengths for street photography. He said although my 16mm (24mm ff equivalent) worked well for some shots, that it's not really a street lens. He's never known of anyone using 24mm for street photography as quite often it just makes everything too far away which means heavy cropping and losing image quality unless I can get really close to the subject. I agree with that. He recommended a more versatile lens such as a zoom and he said I'd be able to get an ff equivalent of 35mm which he uses a lot. He said it would be a better overall length. He let me try his camera and zoom lens at different focal lengths so I could see what they look.
So, instead of completing my Sigma trio and buying the 30mm f1.4, I've decided I really want to buy the new Sigma 18-50 f2.8. It's incredibly light and small, almost identical to my Sigma 56mm f1.4. It's £430, cheaper than e-infin which has it at £449. I'd prefer to buy one
second hand but I believe it's only been out about a month so does anything think if I wait a few weeks there might be some used ones for around £350 ish?