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For each aperture, a focus series is shown, which aids in visualization:
- Bokeh and depth of field.
- The general feel of f/1.1 vs f/2.8 vs f/5.6.
- Lens aberrations, particularly color aberrations.
- Image rendition, the “drawing” style.
- Breathing and the change in image magnification with focus.
Example — footbridge and bike
Visualize the Voigtlander Nokton 50mm f/1.1 at three apertures: f/1.1, f/2.8, f/5.6.
The images at each numbered position were shot at the same focus position (focus, shoot the three apertures, focus again, repeat).
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Diglloyd Guide to LEICA contains in-depth coverage of Leica M system cameras and lenses, with additional coverage of Leica M Monochrom, Leica Q.
Special emphasis is placed on Leica M lenses and certain Zeiss ZM lenses.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly the Summilux/Summicron/Elmarit choice and/or Zeiss ZM.
- Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning. 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 [past 2 years or so].
- 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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