Optically it performs better than its £300 price tag would have you expect while being compact enough to be barely noticeable in a camera bag when travelling. Though the Olympus 12-100mm f/4 IS Pro will work on any Olympus Micro Four Thirds lens, it's really well-suited for the OM-D crowd, in particular the E-M1 Mark II given the lens' optical image stabilization. Maybe my taste is subjective or out in left field. The wide, fast f/2.8 maximum aperture creates a shallow depth of field and improves image quality in low-light conditions. With a wide maximum aperture of f/1.8, this is a fine lens for low-light situations and shallow depth of field imaging.

Olympus 45mm f/1.8 ($399): Budget option!

With that, we've broken up our selections into a variety of photographic subjects, such as portraits, street photography, sports, and so on, which should help you narrow down your options and help you pick a lens that best suits your needs. The Panasonic Lumix G Macro 30mm f/2.8 delivers excellent sharpness in a compact and well-built lens. The third is Panasonic Leica 15mm 1.7. You'll find Micro Four Thirds lenses made by Panasonic, Olympus, Sigma, Samyang, Voigtlander, Leica and many others so there's a wide variety of lens manufacturers listed below along with a variety of focal lengths so you can make an informed decision before you part with your cash. This Panasonic Leica 25mm f/1.4 lens is a solid prime lens that will give you a “general purpose” lens with superb quality at a fair price. This is a good manual MFT lens for indoors, at nighttime or dark environment.
To me personally the gem of the m3/4 system is the Panasonic 20/1.7. If you shoot with a 35mm lens, it's also good for videography. Though I would add I think there are a couple of gems too. At around $1,200, it's up there at the top-tier price range for Olympus MFT lenses. But taking speed and less objective aspects, such as rendering, into account, then I think the OP's lenses are generally the best. With a wide maximum aperture of f/1.8, this is a fine lens for low-light situations and shallow depth of field imaging.

Welcome to the world of smaller, lighter cameras and lenses. This Olympus 12-50mm f/3.5-6.3 lens is a compact, lightweight 4.2x zoom lens that covers a lot of ground.

To me personally the gem of the m3/4 system is the Panasonic 20/1.7.

If you are in the UK please use the 'Buy on Amazon UK' button. That means that when you take photos of people, cars, animals, buildings, landscapes, and so forth, there's a familiarity about how the images look. Or a landscape with rich shades of brown and blue that the PL 15mm captures with more nuance. I also hear great things about the 42.5, but I'm happy with the Olympus 45/1.8. With an equivalent range of 200-800mm, the Panasonic Leica 100-400mm f/4-6.3 ASPH lens boasts a longer reach than any other native lens in the catalogue and making it ideal for wildlife and sports shooters. focal length at the wide-end, the 14-42mm isn't quite wide enough for those epic, sprawling, dramatic landscape shots.

Olympus 60mm f/2.8 Macro ($499): Best Olympus lens for macro photography! Visit our Competitions Forum, where you'll find our monthly competition and other external competitions to enter. What's the best camera for travel? prime lens offers an excellent bang for your buck. It is very handy for "street" shots and interior use.

The 75-300mm focal length gives a 35mm-equivalent zoom range of 150-600mm for a standard to super-telephoto reach.

Whether you've grown tired of what came with your DSLR, or want to start photographing different subjects, a new lens is probably in order.

The additional focal length lets you compress perspective a bit more and is optically one of the best lenses in the MFT lineup.
However for most people, the 45/1.8 is "good enough" and much cheaper. Check this out.

And just a quick note before we dive in, yes, given the Micro Four Thirds standard, we could have also suggested lenses from Panasonic, Sigma, Samyang, Laowa, Voigtländer and various other manufacturers. It would be great if they did a refresh.