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EXCERPT page containing first few paragraphs. 2019-06-16 14:37:30
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Pentax 645Z
Nikon D810

Nikon D810 + Zeiss Otus 55/1.4 APO vs Pentax 645Z (Pine Creek Sunflowers)

The light was varying continuously, the aspect ratio and focal length differs, yet this pair of images has much to reveal on the relative merits of the Nikon D810 and the Pentax 645Z with this challenging high dynamic range scene.

Regrettably, neither camera captures the stunning sense of grandeur which I felt in person while photographing it. First-hand experiences can both reinforce and undermine the assessment of an image, the challenge being to objectively separate one’s personal experience and memory from the actual image.

These are not finished images; suitable investments in time and effort could move the image from either camera along to a more appealing state; there is a lot of potential for more dram in the clouds and lighting, etc. The goal here is to show comparable as-converted results.

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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.

Variants NikonD810, Pentax645Z available in full article

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