INTRODUCTION I recently received several boxes of new photographic papers for beta testing. Since I always make my own profiles, I proceeded to print my...
A Lunar Eclipse in Three ExposuresCredit & Copyright:Stephen Barnesskyoptics.netUsed with permission There will be a total lunar eclipse on the night ofMay 15-16, 2003. It...
This is aPhotoshoptutorial. One of the aspects of digital image processing that causes a great deal of confusion is the many different ways that are...
By Christopher Smith From time to time, the technology of digital cameras can introduce unwanted artifacts. One type of artifact that you can fix with...
Definition:Vignetting–In an optical system, the gradual reduction of image illuminance as the off-axis angle increases,resulting from limitations of the clear apertures of elements within the...