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Apertures Series: Dolls at Close Range (Sony A7R)
This series with the Sony 28mm f/2 examines:
- Close range performance at a subject to film plane distance of 18 inches / 46cm.
- Focus shift.
- Longitudinal and secondary longitudinal chromatic aberration as well as lateral chromatic aberration.
- Point spread function and peripheral aberrations such as coma.
Close-range performance is often reduced with some lens designs. A non-macro lens that performs well at close range is likely to perform at least as well at greater distance.
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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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