There are two basic ways of creating colors: by mixing light and by mixing paint. When we see light, we’re receiving a particular wavelength directly. A red stoplight, for instance, is sending off red wavelengths and nothing else. Light is «additive,» meaning you can add wavelengths together to get new colors. Red + blue = magenta. Not purple, because the more light you add, the brighter the color. Mix enough light of different wavelengths, and you get pure white light.View Why Do Printers Use Cyan and Magenta Instead of Blue and Red?
Advice about scanning software. Part of a series on tips for converting your 35mm print/film collection to digital.View 48-Bit Color
Tips on converting your 35mm print/film collection to digital. Covers scanning and correction.View Digital ICE
I thought I’d share the results of my quest for perfection in the transfer process. As always, I spend many hours upfront in the hopes of establishing a process that won’t have me wasting many days down the road. It’s taken a lot of trial and error, but I think I have that process now. If you’re about to start, maybe this will save you some time and agony.View Digitizing Photos
Recently I attended one grandfather’s 90th birthday, also visiting my 93-year-old other grandfather. Trying to describe my iPhone in terms of real-world analogs produced the following list.View What Have I Got in My Pocket?
I’m curious: If you were born after 1965, are you working in a field directly related to your college major?View What good is college?
For the first millenia of modern humanity, major new inventions were pretty rare. But recent generations have seen numerous technological milestones. For no good reason, I thought I’d jot down what strike me as the most important inventions each recent generation was the first to grow up with.View Generational Tech