I’ve always been fascinated at the thought having one camera and using a couple of quality small prime lenses. This brings me to my purchase of the Olympus 25 f1.2 Pro. The biggest enemy of micro 4/3 cameras is low light. So the bigger the aperture of your lens the better. Yet most lenses at their widest aperture aren’t that sharp. Additionally wide aperture lenses don’t auto focus well below f2.8 on traditional dSLRs.
But the good news is that with using contrast auto focus mixed with phase detect actually on the sensor makes for very accurate auto focus. Tracking in lower light is another thing. So off I went to Norwich Cathedral to test the lens on an Olympus EM5 Mkii (as an aside this camera make’s really great black and white images). The following are the results.
So How Sharp at f1.2?
This is one of the first lenses I’ve owned that I would be happy using wide open at f1.2. Not a tiny lens by any stretch of the imagination but not so huge. Silent and fast to focus. This is the best Olympus 25mm lens.
Compared the the tiny Olympus 25 1.8 however, it’s much bigger, but that’s the price of the big aperture. The f1.8 is also a great lens and more discrete on smaller cameras.
Page last updated: 1st February 2019