A WHITER SHADE OF PALE
By MICHAEL PERKINS
IN THE FACE OF CHANGE, HUMANS WILL DOGGEDLY DEFEND ALMOST ANYTHING, as long as they’ve grown accustomed to it. At their introduction, we inveighed against the intrusion of the telephone (the end of privacy!) and the automobile (they scare the horses and they’re filthy!), but soon learned to love chatting, well, from our freaking cars, so…
One of the things solid citizens of the late 1800’s most objected to was the slicing of the night by the first network of urban street lamps, which were excoriated in editorials from New York to Paris. An invasion! An insult! Unnatural.
Boy, if they could see us now.
In the name of energy savings and sustainability (both good things, right?), street lights across the country are in the midst of a rapid conversion from several types of fluorescent lamps to LEDs. They last longer, they burn cheaper, they cost less. All to the good, except that the light these new torches deliver is blue, pale, cold, and, in the minds of many, harsh. Even those who champion ecologically righteous causes are squinting at LEDs which strike them as grim, sickly, colorless and (wait for it) unnatural.
Writing in the New York Times in the essay “Ruining That Moody Urban Glow“,
novelist Lionel Shriver calls LED light “conducive to dismembering a corpse” and cites studies that claim the fixtures contribute to sleep loss, mood disorders, and, who knows, ingrown toenails. For photography (you knew I’d get here eventually), the new light presents a completely fresh challenge to your camera’s ability to achieve white balance, or an accurate reading of white values according to a given light’s temperature, expressed in degrees Kelvin.
Conventional lights are lower on the Kelvin scale, thus warmer, with more yellow in the mix. LEDs are higher in Kelvin value and register blue-white, muting or mutating colors. At present, both Canon and Nikon have many in-camera settings to balance for a number of sodium-vapor or fluorescents, but have yet to offer options for adjusting for LEDs, even though entire cities have made the switch to what many feel is an ugly, stark source of illumination.
In her Times article, Shriver notes that there are, in fact, subtler types of LEDs, which sacrifice only a bit of energy efficiency and yet emit warmer light, and advocates that citizens go proactive to keep their neighborhoods from looking like the parking lots on interstate truck stops. So take that for what it’s worth. But be aware that more and more of your night shots may, in the near future, have to be adjusted in post-production to resemble a century in which you feel at home.