Tutorials from normankoren.com (page 1)



normankoren.com has 17 tutorials published on pxleyes...

1 - Photographic Technique - part 2 - Photography Tutorial

Photographic technique part 1 discusses camera equipment and technique. This part discusses photographic vision, panoramic photography, and travel.


submitted: 5 years and 3447 days ago


2 - Photographic Technique - part 1 - Photography Tutorial

Photographic technique part 1: cameras, lenses, tripods, bags, film, filters, links.


submitted: 5 years and 3447 days ago


3 - Grain and Sharpness in Scans and Enlarger Prints - Photography Tutorial

In this page we compare grain and sharpness for three scanners with a well-crafted enlarger print, and we look at grain aliasing and software solutions.


submitted: 5 years and 3447 days ago


4 - Depth of Field and Diffraction - Photography Tutorial

In this tutorial we discuss the depth of field (DOF) and deal with such questions as: "How sharp is the image at the DOF limits? Can you trust DOF scales? What aperture should you choose for optimum sharpness when the subject spans a range of distances?"


submitted: 5 years and 3447 days ago


5 - Digital Cameras vs. Film - part 2 - Photography Tutorial

Part 2 of this tutorial contains a comparison of the Nikon D100 with film, our view of the future of digital cameras, Links, a discussion of Information theory and image quality, and how to measure MTF.


submitted: 5 years and 3447 days ago


6 - 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.


submitted: 5 years and 3447 days ago


7 - Lens Testing - Photography Tutorial

In this page we discuss lens testing (actually, testing complete photographic systems) using the Koren 2003 lens test chart, which has continuously varying spatial frequency. You can download, print and assemble it yourself. This approach is primarily intended for film images, but Imatest Log frequency analyzes digitized images of the chart described further.


submitted: 5 years and 3447 days ago


8 - 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.


submitted: 5 years and 3447 days ago


9 - 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?"


submitted: 5 years and 3447 days ago


10 - 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.


submitted: 5 years and 3447 days ago