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Aperture Series: Pine Creek Sunlit Morning (Sony A7R)
Shot on the 36-megapixel Sony A7R.
This scene is at infinity focus, which is a very demanding situation for every lens. For the Zeiss Loxia 50/2 Planar and most 50mm designs, it is a tough challenge because nearly all f/1.4 and f/2 50mm designs have a significant forward field curvature undulation in the mid zones, which results in soft mid zones in the distance, the sharpness being thrust to closer distance (see f/4 in the MTF chart and note the pronounced dip at 15mm offset). This effect is clearly visible for the first several apertures.
Pine Creek sunlit morning
ACR 8.7 (287): ACR settings, Camera Profile = Adobe Standard
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
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