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Hartblei 40mm f/4

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Field shot aperture series crops—40/4

The resolution chart page is predictive of what me might see on a flat (planar) outdoor subject. This page confirms those findings.

Images taken on the 24.4MP Nikon D3x. The resolution of the D3x on an as-designed-for 55 X 55mm film/sensor area is equivalent to a 58 megapixel image; covering an area of that size is a serious optical challenge. Field curvature is one area in which design constraints are often relaxed.

With the shift capability, one can reasonably expect to photograph architecture with the Hartblei lenses. While such subjects are often “3D”, or shot at an angle, there are also plenty of subjects for which a straight-on image is desirable, such as the church mosaic used on this page. Therefore, this image is quite within the scope of reasonable use.

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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.

Aperture series 4,5.6,8,11 available in full article

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