M.Zuiko Digital ED 8-25mm F4.0 PRO Lens, Wide Angle Zoom, Suitable for All Micro Four Thirds System Cameras (Olympus OM-D & PEN Models, Panasonic G-Series), Black

I have to admit t I hesitated a little bit about buying a lens, partly because of the price and partly because of the aperture (F4 - for a Pro lens, I would have hoped for a slightly faster aperture, like F2.8). But I really needed a good wide angle lens and after researching quite considerably between all the options available between Olympus/OM Systems, Panasonic and Laowa, this seemed to be the one to get. And so I made the plunge and I've to regretted it at all. Most of the shots I've taken have been so good, to e needed no to little post-production editing and that shows the quality of the photos that this lens can take. If there's a downside, then that would have to be that you have to extend the lens before you can start using it, but if you're using this primarily for landscape photography, that shouldn't be an issue. An upside is that the manual focus clutch works very well, even on a Panasonic body, although the Function button is a little redundant.