30 Jan A little light reading for the keen photographer
Join me in a little thought experiment: A collection of photons is admitted to a sealed container under carefully controlled conditions. After precise measurement of the distribution and intensity of the trapped photons, processing is performed by sophisticated algorithms.
Output from this process is then the subject of intense scrutiny and further manipulation before stringent peer review. You might ask what this strange business is all about?
The strange business is of course photography. You may think that I have chosen a strange way to describe a familiar process but then photography is all about light and, right from the word go, light is an exceedingly strange customer.
Once upon a time we were content to take pictures of clouds. We just could smell the light and knew instinctively how to set our cameras. Now we click away on our little light-sensing computers without a thought for what’s going on inside. Instead, we store the results in the clouds. We’ve come a long way — but perhaps we’ve lost something along the road.
Werner Heisenberg was responsible for discovering the second most famous equation after Einstein’s E=mc2. In case it has slipped our minds, Heisenberg’s memorable equation is ΔpΔx ≥ h/4π
Doesn’t it feel better to get that out of the way? Heisenberg worked out in this equation a fundamental truth about the observation of all subatomic particles including the particles of light or photons.
In a nutshell, the consequences of Heisenberg’s discovery are mind boggling, At subatomic level, you can measure the position of…
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