EXCERPT page containing first few paragraphs. 2021-06-14 05:49:03
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This page shows results and examples from 85mm lenses. The 21-megapixel Canon EOS 1Ds Mark III was used to allow the maximum number of lenses to be tested, including Leica and Nikon.
The amount of focus shift varies by lens. These examples were shot at a distance of approximately 68 inches (1.72 meters). This is a distance that frames a loose head-and-shoulders portrait, which means that focus shift has the potential to throw the all-important eyes into blur when focusing wide open (f/1.2 or f/1.4 or f/2) and shooting stopped down.
The lens was focused at f/1.2. Focus shift is negligible, effectively absent.
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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.
Focused at f/1.2