Image samples, 100% corner crops. Top: Nikon 24-70 at f/2.8 and f/5.6. Bottom: Zeiss Otus at f/1.4, f/2.8 and f/5.6. Click to enlarge.

In physics, gravitons are hypothetical elementary particles that mediate the force of gravitation in the framework of quantum field theory. For me, gravitons are real objects that mediate the drag forces into photo stores of larger cities.

During a recent trip to Zurich, Switzerland, I was dragged into the “Fotoschiff “; a fair organized by FotoPro and hosted on a boat afloat the lake. There I learned that one of the FotoPro stores had on stock a Zeiss Otus 55 f/1.4 Apo Distagon for the Nikon F mount. This gave me the opportunity to take a couple of images through the store’s door at the Rennweg. Of course, I exerted the usual shot discipline, which includes tripod mounting, focusing in live view, mirror lock up, three seconds shutter delay, and raw processing in Capture One Pro.

The full frames are devoid of any composition and are therefore omitted here. The 100% views, cropped from the upper right corner of the scene, are shown for the apertures 1.4, 2.8 and 5.6. The focal point was on the tiles of the roof, which are a good subject for testing the micro contrast and tonal rendering of lenses. The white balance was fixed to the same value and no additional sharpening was applied in the raw processor.

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