DON’T EVER ALWAYS DO ANYTHING

This shot, as the one below, is taken at 1/60 sec,, f/2.2, ISO 250, 35mm. The difference between the two images is the white balance setting.

By MICHAEL PERKINS

IF YOU’VE EVER GLANCED AT THE NORMAL EYE’S HOME PAGE MISSION STATEMENT, you might come away with the impression that I am unilaterally opposed to automodes, those dandy little pre-sets that do their best to predict your needs when making a photo. The truth is that I am against doing anything “all the time”, and thus caution against the universal use of automodes as a way of idiot-proofing your shoots. They can be amazing time-savers, sometimes. They are reliable shortcuts, sometimes. Just like I sometimes like bacon on a burger. There are no universal fixes.

I meet many people who, like myself, prefer to shoot on manual most of the time, eschewing the Auto, Program, Aperture Priority and Shutter Priority modes completely. Oddly, many of these same people almost never take their white balance off its default auto setting, which strikes me as a little odd, since the key to color photography is getting the colors to register as naturally as possible. Auto WB is remarkably good at guessing what whites (and in turn, other hues) ought to look like in a pretty wide variety of situations, but it does make some bad guesses, many of them hard to predict.

A gross-oversimplification of white balance is that it reads the temperature of light from cold to warm. Colder temp light runs bluer. Warmer temp light reads more orange. Auto WB tries to render things as naturally as it can, but your camera also has other customizable WB settings for specific situations, and it’s worth clicking through them to see how easy it is to produce subtle variations.

In the picture in the upper left corner, I’m taking a picture indoors, in deep shade, of a reproduction 1930’s Bluebird Sparton radio, a wondrous Art Deco beauty featuring a blue-tinted mirror trimmed in bands of chrome. To emphasize: blue is the dominant color of this item, especially in shade. Shade, being “colder” light, should, in Auto White Balance mode, have registered all that blue just fine, but, in this case, the chrome trim is completely (and unnaturally) painted in the same orange glow. As for the blue values, they’re well, kind of popsicle-y . That’s because, when it’s all said and done, Auto White Balance is your camera’s educated guess, and it sometimes guesses wrong. If you always use it, you will occasionally have to eat a bad picture, unless you take action.

I get blue when I listen to the radio, or when I dial up the appropriate white balance.

For the above image, I want the dial to be nice and orange, but just the dial. To try to get the blues back to normal on the rest of the radio, I switch to the Tungsten white balance setting (symbolized by a light bulb, since they burn, yes, tungsten filaments), something I normally wouldn’t do in either daylight or shade, but hey, this is an experiment anyway, right? To make it even weirder, Tungsten might read neutrally in some kinds of indoor night settings…but it also doesn’t behave the same way in all cases. In this case, I caught a break: the orange in the radio dial registers pretty true and all the metals are back to shades of silver or blue.

Notice how both white balance settings, in this strange case, both performed counter to the way they are supposed to. One misbehaviour created my problem and another misbehaviour solved it. Hey, that’s show business.

Hence the strange but appropriate title of this post. Don’t ever “always” do…anything. If you want the shot you want (huh?) then pull an intervention and make the camera give it to you. Automode in white balance is just as fraught with risk as any other automatic setting. It works great until it doesn’t. Then you have to step in.