Archives
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I care that everyone can get married
This post started as a comment on my friend Ambrose's blog but it was getting long enough to justify a post. Check it out for context.Let's start with this: marriage cannot be defined by the biological prospect of having children, because that would rule out sterile couples and menopausal women. As simple as that.
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More Extreme Close-up
The previous post showed how magnification changes with various lengths of extension tube, using a simple inexpensive fixed focal lens. Today, I want to show how changing other factors can affect your pictures, and for this I'm going to use a much more expensive lens, a 70-200mm telephoto lens. -
Extreme close-up!
Macro lenses are expensive. There is a cheap alternative, though, that can transform a regular lens into a macro lens: extension tubes. Extension tubes are simply hollow tubes that you put between the lens and the body of the camera. Optically inert, they shorten the focal distance and depth of field and bump up magnification, at the price of a loss of light. -
The Many Tribes Society
If I told you that the emergence of blogs, Twitter and Facebook have changed our societies in more profound ways than we imagine, you’d be justified in telling me that I’m being neither original nor very pertinent. There is certainly something to be said about the amplification effect those services have on self-centeredness and gossip, and how those are sometimes more powerful than the few examples we have of new media spreading freedom, truth and democracy. Still, I think we are seeing the first signs of a profound revolution, one that is remodeling society in a way that is more in tune with our evolutionary origins. One where the notion of tribe makes a comeback, but with a couple of twists.