Charles S. Johnson, Jr.
Articles by Charles S. Johnson, Jr.
Star Trails and Exposure Times for Landscape Astrophotographers
Do stars move in circles around Polaris in your camera? As the lawyers say, it depends. If you have the usual rectilinear lens (anything other
Observing and Managing Color: Dealing with Color Vision Anomalies
The camera versus the human eye Superficially, the human eye appears to be similar to a camera. Here looks certainly deceive because, other than a
What We See
An essay by Charles S. Johnson, Jr. Reality is merely an illusion, albeit a very persistent one. – Albert Einstein I don’t mean that the real
The Ethics of Photo Manipulation
By Charles S. Johnson, Jr.We are bombarded with images from television, computer screens, newspapers, and magazines. There are advertisements, illustrations for news stories, snapshots from
Full Sized vs. Cropped Sensors
By Charles Sidney Johnson, Jr. Questions like this and misleading answers fill the photographic forums. One “expert” says that lenses are not equivalent to anything