EXCERPT page containing first few paragraphs. 2019-05-25 11:18:25
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How does one deal with outdoor scenes in which the depth of field of f/16 - f/22 would be desirable, but f/16 degrades the image unacceptably (by diffraction)? The answer is focus stacking.
This page compares a 3-frame focus stacked image to a single frame taken at f/11, the frame delivering the sharpest total result (medium distance focus). The stacked image consists of 3 frames: (1) immediate foreground, (2) medium distance, (4) far distance. It is a classic landscape shot with a close foreground that needs to be sharp, but focusing closely means unsharp mountain peaks. Two ends are served here:
- Showing what is possible with focus stacking versus single frame, a highly relevant consideration for landscape photographers.
- Showing the imaging performance of the Sony 16-35/2.8 GM near to far at its best, even if that best cannot be realized in any single frame.
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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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