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Nikon D800

Examples — Downsampling to Competing Sizes

Let’s take a look at effective ISO ~1100 when downsampled. Here are three other camera resolutions, width in pixels:

Never look at actual pixels quality without considering the context, e.g., the total number of pixels.

A higher sampling frequency is always better, everything else being commensurate; this can reduce digital artifacts by sampling at a higher frequency, then downsampling to an output resolution. This is why the future holds in store a ~100+ megapixel DSLR as a great way to produce 50 megapixel images.

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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.

f/5.6 @ 1/800 sec, ISO 800 +0.4 push
5000°K, Tint =+8 magenta
Nikon D800 + Nikon 35/1.4G

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