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How to Read and Use a Histogram
Posted on 15 August 2018
Reading the Histogram Graph
The histogram is a graph. The horizontal axis shows you the tonal distribution (dark to light). The vertical axis shows you the number of pixels in a particular tone. Generally speaking, you want a histogram graph that resembles a bell curve. If your image is too bright or too dark, you’ll lose details. Remember, at times this may be intentional. Sometimes uneven distribution is OK. Some pictures are not evenly exposed by design, like when you’re shooting a snow scene or when you’re taking a picture of something against a white background. The same is true when you’re shooting a dark object, like a silhouette. There’s no ‘correct’ histogram reading. The important thing is that you know what you want your image to look like. Don’t just examine the histogram on pictures that turn out great. Examine it when your pictures are overexposed or underexposed so you know what to look for while shooting. Once you get good at reading the histogram, you’ll know instinctively when to try a different shutter speed, increase or decrease the ISO, adjust the exposure compensation, or switch to a smaller or larger aperture. Now, having said all that, for those who have a camera with a “highlight indicator” in the playback options, I suggest turning that on for an easy way to get correct exposure: When the highlights are overexposed, they will be blinking at you when you view the LCD/EVF screen. We refer to these as “blinkies). When you see these “blinkies” you need to lower the exposure, which means smaller aperture or higher shutter speed.Learn Photography Skills from the Pros!
Want to learn how to create and sell a landscape photography calendar? Need help with a photography pricing guide? Our blog is full of business tips for aspiring photographers. If you’re looking to hone your skills or take a landscape photography adventure with professional photographers, Jim and Lori Steinberg of Steinberg Photography offer numerous exciting workshops and tours that are great for everyone from beginners to professionals. See where we’re heading next!Leave a comment
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