EXCERPT page containing first few paragraphs. 2021-12-08 20:50:49
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This page investigates performance of the quarter tones (near black), an area of performance rarely explored yet extremely useful in any dynamic scene, or with underexposed images. While this issue applies to any ISO, it should be of particular concern for anyone seeking the absolute best image quality, which means using low ISO values. Please see Low vs High ISO for more about this important area of performance.
Near-black performance is also highly relevant to current DSLR features like Nikon’x Noise Amplified for more.and Canon’s . See
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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.
After applying Shadows/Highlights as detailed below