The Olympus M.Zuiko Digital ED 12-100mm f/4 IS PRO lens is a versatile all-round lens. With a maximum aperture of f/4, it’s relatively fast but still obviously a bit slower than f/2.8 lenses. It’s also ruggedized (the “PRO” part), so it takes light rain or spray in stride.
Olympus is now OM System
In 2020-21, the photography business of iconic camera brand Olympus was spun off and sold. The core remaining Olympus brand is focusing on medical and scientific products. The camera and photography side was then rebranded as OM System, with the first cameras and lenses under that brand coming out at the end of 2021.
It’s designed to go on Olympus / OM System Micro Four Thirds bodies (while it still carries the Olympus branding, it’s fully compatible with the camera bodies that carry the newer OM System brand name). On those, the effective focal length is doubled. So it’s an equivalent view of a 24-200mm lens would be on a full-frame body. For the shots below, I used an Olympus OM-1.
These were shot in RAW and lightly processed in Lightroom, but I haven’t applied any optical corrections to these (eg. chromatic aberration, distortion, vignetting, etc).
I’ve tried to include a variety of general travel-type scenes and a range of apertures. You can click on each image for a full-resolution version.
Optical Correction Tools
I deliberately haven’t applied extensive corrections to these images. And the general rule of thumb in photography is that it’s better to get the shot right at the time of capture rather than trying to fix it after. That’s a great aspiration, but it’s not always possible to do if you’re bumping up against limitations or flaws in gear, conditions, or technique.
But it’s worth mentioning that there are some excellent tools available to help address common issues with lenses, such as distortion, chromatic aberration, and lens vignetting when editing the images. All-round image processing apps like Lightroom Classic and Capture One have solid tools built in already that often cater to specific lens profiles (or you can make your own).
Some more specialized tools can take it even further. DxO, in particular, sets the gold standard.Their software is built on the foundation of their incredibly deep archive of data from their extensive lab testing of the optical performance of lenses and cameras. But there are some other excellent specialized tools available. These are well worth a look (and have free trials):
DxO Pure RAW (for a suite of automatic RAW file corrections enhancement)
It comes with a lens hood, but if you need a replacement, the model number is LH-76B.
There’s no model-specific lens case, but there’s a huge range of lens cases available that will work well, from neoprene soft cases to heavy-duty hard cases. When looking to see which lens cases will fit, the dimensions of the lens when retracted (i.e., zoomed out to its smallest physical size) are: 3.05 inches / 77.5mm diameter and 4.59 inches / 116.5 mm long.
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I'm a professional photographer based in Washington, DC. Seven continents, up mountains, underwater, and many places in between. I've been shooting for 30+ years, and my photos and time-lapse videos have appeared in a bunch of different publications, from major newspapers to magazines and books, billboards, TV shows, professional sports stadiums, museums, and even massive architectural scrims covering world-famous buildings while they're being renovated. You can see some of my travel photography here and here.
My name is David Coleman, and this is my site.
I take photos for a living. Seven continents. Dozens of countries. Up mountains. Under water. And a bunch of places in between. I'm based in Washington DC.
All posts and reviews on this site are written by me. And I only review gear with which I have personal hands-on experience. More about me.