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Sony FE 16-35mm f/2.8 GM

Imaging Performance @ 16mm, Single Frame vs 3-Frame Stack: Flowers in Meadow to High Peaks, Dusk

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:

  1. Showing what is possible with focus stacking versus single frame, a highly relevant consideration for landscape photographers.
  2. 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.

  • Make better images by learning how to get the best results right away. For example, the best way to set up your Sony camera.
  • Save money by choosing the right lens for your needs the first time, particularly with the numerous lenses available for Sony.
  • Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning—best practices and how-to and processing parameters are discussed and shown.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 28 megapixels filling up to 5K display, plus large crops.
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
  • 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.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Sony.

Variants Stacked,SingleFrame available in full article

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