14/05/2026 5:26 am
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I really need to know which MFT prime is actually the king for street stuff because I'm finally upgrading from my kit lens next week before my Tokyo trip. I'm so excited to finally get some decent bokeh and low light performance but I'm honestly paralyzed by all the options out there and I dont want to waste my money on the wrong focal length.
I've been looking at a few specifically:
- Lumix 20mm f1.7 because it is so tiny
- Olympus 17mm f1.8 for that manual focus clutch
- Leica 15mm f1.7 which everyone seems to love
I read online that the 20mm has some really slow autofocus which makes me nervous for quick street shots where people are moving fast but then people say the 17mm Oly is a bit soft in the corners compared to the others? I cant tell if those are just gear nerds being extra or if I'll actually notice it on my GX85. My budget is strictly under 500 bucks and I'm totally fine buying used gear from MPB or eBay. I'm mostly gonna be shooting in busy markets and neon alleys so I need something fast. Should I just go for the 15mm Leica or is that focal length gonna be too wide for candid stuff? I'm just so torn...
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14/05/2026 6:30 am
So we've got people liking the 15mm but the 20mm being a letdown for speed. Regarding what #2 said about how that 15mm is solid but the 20mm is a buzzkill... I totally agree. Missed a ton of shots in Shinjuku because of that slow AF. Be careful and consider these:
- Buy a used Olympus M.Zuiko Digital 17mm f/1.8
- Use the manual clutch for zone focusing It is easily the best budget pick.
10
14/05/2026 5:26 am
I've been super satisfied with the Panasonic Leica DG Summilux 15mm f/1.7 ASPH on my GX85. It works really well for those tight neon alleys and the autofocus is way faster than the 20mm. My tip: dont overthink the corner softness on the 17mm, but the 15mm just feels higher quality for the price. You'll be happy you went wider!
2
14/05/2026 5:40 am
Like someone mentioned, that 15mm is solid, but I was unfortunately disappointed with the Panasonic Lumix G 20mm f/1.7 II ASPH on my GX85. The slow autofocus is a total buzzkill for street stuff. Quick tip: the Olympus M.Zuiko Digital 25mm f/1.8 is way snappier if you dont mind a tighter view. Are you mostly doing wide environmental shots or tight portraits? Narrow Tokyo alleys make that focal length choice pretty tricky.
