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ISO Series
Introduction
See the background information on the first noise page. Unlike the first study, shutter speeds here are more ordinary, beginning at 3/4 second at ISO 50 and ending at 1/160 second at ISO HI 2 (6400).
Examples on this page were processed in Capture NX 2 using low-contrast Neutral and a white balance of 5000K, with noise reduction off. The use of Neutral is best for evaluating noise, because most other processing modes introduce a tonal curve which masks noise in the dark areas. The crops will look soft because of low contrast, minimal sharpening, use of f/11 and a crop that is not in the optimal zone of sharp focus.
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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.
The frame used for this page , crop is from center upper area.