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Diffraction with the D3x

Introduction

Several articles at diglloyd.com have discussed diffraction. See also my Jan/Feb 2009 article in Photo Techniques magazine: Diffraction — Resolution Taxed to Its Limits.

With the groundbreaking resolution of the D3x, it’s natural to ask what the aperture limits are for optimal results, a factor to consider when making real images. The good news is that the D3x images hold up very well when stopping down. The bad news is that diffraction is an inviolate law to which the D3x is subject, like any other DSLR.

This series was taken with the Zeiss ZF 100mm f/2 Makro-Planar, which offers a flat field, and exploits the D3x sensor across the entire frame, even wide open. Crops are from near the center.

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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.

Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.

  • 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 some of the new Sigma Art lenses vs Nikon and Canon.
  • Workflow discusses image organization, raw conversion and post processing. Many examples show processing parameters for direct insight into how the image was converted.
  • 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.

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


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