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Sony FE 12-24mm f/4 G

Imaging Performance @ 24mm, Single Frame vs Stacked: Downed Tree, Last Kiss of Sunlight

This 3-frame focus stack compares with a single frame at f/11. The difference in total sharpness is remarkable, especially since f/11 at 24mm might be expected to have good depth of field. As the single frame shows, no single frame is up to the job for an image like this.

Focus stacking helps overcome three issues:

The Sony 12-24mm f/4 G used for this stack has a symmetry issue, with the right side generally unsharp with its focus thrown to the distance (including “beyond infinity” if focused to the far distance). Such asymmetries are very common, and many Sony lenses that I have tested have shown them—frustrating.

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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 full camera resolution, 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.

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Variants Stacked,MediumFocus available in full article

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