For a brief period of time, I owned three wide zooms that worked well on my Olympus E-M1 body — so I thought I should take the opportunity to compare their performance on a quick walk around a neighborhood park. Actually writing up this review took a bit of time, and was prompted by an excellent comparison of two of these lenses over on Small Camera Big Picture.
A warning to pixel peepers: what follows is a real-life experiential comparison.
The lenses, as you can see, were the Olympus 12-60mm f/2.8-4.0 (4/3 system) lens on an MMF-3 adapter, the new Olympus 12-40mm f/2.8 lens, and the Panasonic Lumix 12-35mm f/2.8 lens. The 12-60 I’ve had for years, the 12-35 was a “gap-filler” purchase (for use while waiting for the 12-40mm to ship), and the 12-40mm my planned go-to lens going forward.