EXCERPT page containing first few paragraphs. 2019-06-24 05:46:30
UA_SEARCH_BOT_null @ 184.108.40.206
This example taken from the fruit ISO series.
Noise and degree of enlargement
Too often the degree of enlargement is forgotten when discussing noise.
A 36-megapixel image needs considerably less enlargement for the same size print because of higher pixel density; it is not per-pixel noise that matters but in essence, noise per area. Hence a discussion of “noise” that drops the context of print size (reproduction size) is meaningless.'
Taking an analogy: “I rode my bike 10 today”. Ten miles, ten kilometers, ten feet? Obviously units are required for distance, and for noise, the degree of enlargement is needed. A discussion dropping that context shows a fundamental failure in reasoning.
Article continues for subscribers...
Diglloyd Advanced DSLR is by yearly subscription. Subscribe now for about 16 cents a day ($60/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
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.