Knowing When to Bias
Most of the time, I use the multi-pattern metering mode of my various cameras. I often want to capture a good range of highlight and shadow detail for many of my images, so I find that this metering method helps me to achieve that. I still reference my histogram, especially in high-contrast scenes, but I find that multi-pattern metering provides excellent results.
However, there are times when I want to bias my exposure for specific elements in the frame. So, while the multi-pattern meter may deliver a good overall exposure, it may not produce an image that accurately captures how I was responding to the light.
I was waiting at a rail station in Las Vegas when I saw the pattern created by the sun passing through a metal ...