45mm Olympus and 50mm Nikon lenses on OLYMPUS OM-D E-M5

Comparison betwen Olympus 45mm and Nikon 50mm lenses on an OM-D E-M5

I was doing a test on two lenses fitted to my Olympus OM-D. Not as part of any review or with any intention of publishing, just something I was looking at for future use. The lenses were the Olympus 45mm f/1.8 and a Nikon 50mm f/1.8D fitted to the camera with a Kipon adapter.

At all apertures the Olympus lens was slightly lighter and had a shutter speed that was a stop more. As you can see the Olympus result is lighter, though not by a stop. I did the test twice just to make sure I hadn't done anything wrong. It was the same both times.

Now this isn't that unusual and I have seen the same thing before, when comparing lenses. Often between lenses where on one aperture is set manually and the other electronically. Why there should be this discrepancy, I cannot say. As you see the images are photographing the same thing, and I see nothing that would affect the shutter speed.

In terms of which I prefer, the Nikon lens gives the result I'm happiest with, in terms of exposure.

Just one of the reasons I like to check out the lenses I use. So I don't get any "surprises" when I use them for real.

N.B. to see more on the cameras and lenses featured in this post click on the relevant labels (tags and keywords) below.
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