Photography Tutorials - resolutions

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Pixels and Images - Photography Tutorial

This pages introduces the fundamental concepts of digital images: what they are, how their size and resolution is specified, and how they are stored.


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Resolution and MTF Curves in Film and Lenses - Photography Tutorial

In this page we illustrate how MTF is used to characterize the performance of film and lenses.


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Resolution and MTF Curves in Scanners and Sharpening - Photography Tutorial

In this page we examine the MTF of scanners and sharpening algorithms, and we address the question, "What scanner resolution (pixels per inch or dpi) is required for a digital print to appear sharper than a conventional darkroom print?"


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Printers and Prints - Photography Tutorial

In this page we discuss printers and prints and how to characterize their sharpness and resolution. We deal with the issue of how many pixels per inch are required for a sharp print.


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Digital Cameras vs. Film - part 1 - Photography Tutorial

Part 1 of this tutorial describes the four pillars of image quality, digital image sensors, the simulation technique, and presents a summary of results comparing digital camera resolution with film.



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