I started out with a G85 too, and honestly, don't overthink it. Since ur shooting handheld, you *definitely* want the Panasonic Lumix G Vario 45-150mm f/4.0-5.6 ASPH. MEGA O.I.S. over the Oly. The Dual IS on ur body makes a massive difference for steady shots at 150mm. I've used both, and the Panasonic just feels smoother. Plus, they're like $130 used on eBay, absolute steal for the quality u get tho. gl!

sooo jumping in here! honestly i feel u on those 'pro' lens prices... it literally hurts the soul lol. you might find this useful—check out MPB or KEH for used gear. seriously, i basically live on those sites because buying new is just too expensive nowadays and they're way more reliable than ebay imo. i've picked up most of my travel kit there and never had a bad experience. technically, i gotta say... i had issues with mixing brands before. unfortunately, i tried an olympus zoom on my g85 and it was kinda a letdown? idk, the stabilization just didnt feel right. basically, when you stick to panasonic glass on a panasonic body, you get that 'dual is' tech where the lens and body work together. when i switched brands, my handheld shots at the long end were way blurrier than i wanted... super disappointing tbh. also, some glass from the other brand on pana sensors gives you weird purple fringing on buildings, which is a total pain to edit out later. i mean, it's not the end of the world, but it's definitely not as good as expected when youre trying to capture crisp details. TL;DR: pro tip—just go with panasonic for the zoom. staying within the brand ecosystem is basically the way to go for the best handheld performance. it makes a huge difference if youre shooting architecture or wildlife without a tripod. gl with the search! 👍

Honestly, if youre using a G85, you really should prioritize system synergy for the best long-term reliability. Since that body supports Dual I.S. 2, sticking with Panasonic glass isnt just about brand loyalty—its about the high-speed communication protocol between the lens and the sensor. If you want a reliable long-reach option that fits your budget, look for the Panasonic Lumix G Vario 45-200mm f/4.0-5.6 II POWER O.I.S.. Make sure you specifically find the "II" version. The Mark II update is critical because it features an upgraded linear motor for significantly faster AF tracking and adds weather sealing to match your G85’s rugged build. Dealing with environmental factors like dust or light drizzle during travel is a major reliability concern, and the Mark II addresses that perfectly, right? Plus, the Power O.I.S. in the Mark II is technically superior to the older Mega O.I.S. standards. You can usually snag these used for around $250-$290. Its basically the best value for a telephoto that actually utilizes your cameras hardware to its full potential, you know?