Panasonic H-FSA100300

The stabilization is the star here, ranking in the 83rd percentile and making 600mm equivalent handheld shooting surprisingly easy. But the optical quality is a real letdown at the 21st percentile, so don't expect tack-sharp images wide open. For under a grand, it's a practical telephoto for Micro Four Thirds shooters who prioritize reach and stabilization over critical sharpness.

The stabilization is the headline act. At the 83rd percentile, it's one of the best on the market for a telephoto zoom, and it shows. We're talking about a 600mm equivalent field of view that you can handhold at surprisingly slow shutter speeds. Panasonic's Dual I.S. compatibility with bodies like the G9 or GH6 pushes that even further. The optical quality, however, is a weak spot. It ranks in the 21st percentile, which is disappointing. The single extra-low dispersion element helps with chromatic aberration, but don't expect biting sharpness across the frame, especially wide open at 300mm. You'll get usable images, but pixel-peepers will notice some softness. The bokeh is decent, coming in at the 63rd percentile thanks to a 7-blade rounded diaphragm, but it's not going to melt backgrounds like a fast prime. The linear AF motor is quiet and accurate for video, but its 54th percentile speed ranking means it can hunt a bit when tracking erratic subjects.

Stacked against the competition, this Panasonic is a specialist. The Tamron 17-70mm f/2.8 and Sigma 28-70mm f/2.8 are completely different beasts, standard zooms for APS-C and full-frame with much brighter apertures. They'll run circles around the Panasonic in low light and sharpness, but they can't touch its 600mm reach. The Sony E 18-135mm f/3.5-5.6 is a closer rival in spirit, a superzoom with similar aperture trade-offs, but it's for APS-C and tops out at 202mm equivalent. The Viltrox 27mm f/1.2 is a prime lens, so it's in another world for sharpness and bokeh, but it's a one-trick pony. If you need a long telephoto for Micro Four Thirds, this Panasonic is one of the few affordable options that gets you to 600mm with good stabilization. Just know you're trading optical excellence for that reach.

At $980, this lens is a bit of a mixed bag for value. You're paying for that incredible stabilization and the sheer reach, which is hard to find at this price point in any system. The bundle with a memory card, filters, and a cleaning kit sweetens the deal a little, but the core lens's optical and build quality rankings are low enough to give us pause. If you need 600mm equivalent on a budget and can work around the softness, it's a solid buy. But if sharpness is your priority, you might want to save up for something like the Panasonic Leica 100-400mm, which is a big step up in both price and performance.

The Panasonic G Vario 100-300mm f/4-5.6 II is a telephoto zoom that gives Micro Four Thirds shooters a massive 200-600mm equivalent reach without the back-breaking weight of full-frame glass. At 1134g, it's manageable for a day in the field, and the stabilization is a standout, landing in the 83rd percentile for its class. That POWER O.I.S. system is the real hero here, making handheld shooting at 600mm equivalent actually doable. The autofocus is a middle-of-the-pack performer at the 54th percentile, so it's fine for most wildlife and sports, but don't expect it to keep up with the fastest action in low light. The f/4-5.6 variable aperture is about what you'd expect for a lens in this range, sitting at the 65th percentile, which means you'll be leaning on good light or higher ISOs at the long end.

If you're a pixel-peeper who obsesses over corner-to-corner sharpness, this lens will drive you nuts. The 21st percentile optical ranking means it's one of the softer telephotos we've seen. Landscape photographers should also look elsewhere, the lens scored a dismal 30.1 out of 100 in that category. And if you shoot in rough weather, the lack of sealing and the 5th percentile build quality are a real concern. You'd be better off saving for the Panasonic Leica 100-400mm or adapting a used DSLR telephoto if weather sealing and sharpness matter.

The Panasonic 100-300mm II is a lens that knows exactly what it is: a stabilized, affordable way to get to 600mm equivalent. The stabilization is genuinely impressive and saves this lens from its mediocre optics. If you're a wildlife or sports shooter on a Micro Four Thirds budget, and you understand that you'll need to stop down to f/8 for the sharpest results, it's a practical tool. But if you're picky about image quality or build, the low optical and build rankings will frustrate you. It's a classic case of a lens that's good enough for the job, but not one you'll fall in love with.