Look, I've been shooting L-mount since the original SL launched and honestly, blowing your budget on the body then scrambling for glass is a classic move... i did the exact same thing. Unfortunately, my experience with the Sigma 28-70mm F2.8 DG DN Contemporary was pretty disappointing. A week-long street photography trip to Chicago last year proved it just feels wrong on the SL2. It’s light, sure, but it felt like a plastic toy in the hand and the corners were way softer than I expected. Low light autofocus hunting was another headache that ruined a few really good shots near the subway stations. While the Panasonic Lumix S 50mm f/1.8 is fine for the price, it feels kind of soul-less. After buying one thinking it’d be a lightweight daily driver, the rendering just came off as too clinical. It is basically the opposite of what you want when you're chasing that Leica look. Tbh if I had 900 bucks right now, I’d skip that zoom and look at the Sigma 35mm f/2 DG DN Contemporary instead. It’s built way better with that all-metal feel and actually fits the SL2 vibe. Zooming with your feet is better than dealing with the mushy corners on that 28-70 anyway. Just my two cents after wasting money on gear that didnt live up to the hype...