Before I put my Nikon 200mm f/2 up for sale, I decided I'd take the time to do some serious comparison with my new Olympus 180mm f/2. The first test, here, is with two monolights. The background is the large picture window to still get a nice blurred background. I shot both wide open: Nikon: Self-Portrait Test #1 by Mike Aubrey, on Flickr Olympus: Self-Portrait Test #2 by Mike Aubrey, on Flickr The Nikon is simply an amazing lens. Studio lighting takes it's lower contrast out of the equation and makes it clear that they're effectively equal in terms of resolution/sharpness. 100% Crops from the A7rII: Focus is ever so slightly different. The Olympus is right on the iris and the Nikon is ever so slightly in front. I'd say it's ever so slightly cooler than the Olympus, too. Even though I have what is a beautiful replacement in the Olympus, I'm seriously going to miss the Nikon. A legendary lens, even replaced with another legendary lens, is still worth missing.