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What Camera Histogram Is and How to Read Camera Histogram within Your Photographs

Camera histogram is one of the most important concepts when you need to take a desired photo with digital camera. After you took a photo with a digital camera, you can view it immediately on your device or computer. However, the digital screen does not display the original image. Instead, digital devices will evaluate exposure and reproduce your images. In fact, both digital camera’s LCD and EVF have adjustable brightness. So, how can you fine-tune the exposure if you cannot trust what your eyes see? The answer is camera histogram. Just learn more about the brief instruction for the concept from the article.

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Part 1: Brief Review of Camera Histogram

Camera Histogram is a professional concept. Generally speaking, there are four histograms in modern digital camera. The primary one is the luminosity histogram. It tells you overall brightness of a scene. The other three camera histograms are involved with colors, representing the red, green and blue pixels on the sensor. In short, a camera histogram is a graph that shows you some sets of pixel data.

Is there an ideal camera histogram for shooting? There is no ideal distribution of tones. Some scenes will contain more darks than mid-tones or highlights, others will contain almost of highlights, a few mid-tones, and almost no darks. Just choose the desired one according to your requirement. The camera histogram is based on a JPEG, even if you’re shooting RAW. Moreover, when you change your lens, it will change the camera histogram as well, even if you leave the setting the same.

Camera Histogram

Part 2: Why Do You Need a Camera Histogram

Just as mentioned previously, both digital screen and your eyes are not trustable since they cannot show a 100% accurate representation of what the sensor is capturing.

Camera histogram shows you a graph of pixels arranged from dark to light. So, it provides exact data to confirm the color, white balance, exposure, contrast and more for any area of your photo. It is also important when you edit photos. It lets you know how far you can change exposure before clipping pixels.

The biggest advantage of camera histograms is to help you avoid over or under exposing a photo. After taking a photo with your digital camera, you may want to make dark area darker and the white pixels brighter to get details. However, if you do it directly, there is no way to bring them back. The camera histogram tells you the exposure in a graph.

Moreover, the camera histograms for red, green and blue channels are useful too. If a particular color is so bright that gets blown out, the combination of the three channels may look nice but one channel may still be clipped. With camera histogram, you can view individual channel, adjust it separately.

Histogram of Camera

Part 3: How to View Camera Histogram on PC/Mac

In one word, camera histogram can help you edit a photo as a professional. Of course, you can read it on your camera. How to view the information of camera histogram within your computer? WidsMob Viewer Pro is the desired camera histogram reader and RAW viewer, which you can learn every details about the photographs taken by your digital camera. Moreover, you can also browse the images, create slideshow and convert the photos.

1. Show you camera histograms information, EXIF information and others.

2. Adjust exposure, contrast, saturation and other parameters for histogram.

3. Support almost media formats, such as RAW, JPEG, MP4, HEIC, etc.

5. Include extensive bonus tools, such as image sharing, editing and more.

Download for Mac Version

How to View Camera Histogram on PC and Mac

Step 1: Launch the camera histogram reader after you installed the program to your computer. If you have set it as the default photo viewer, double-click on the images to open them directly. Then go to the File option and choose the Open option to import the desired photos.

Load NEF Image

Step 2: To view camera histogram of a digital photo, select it in the library and click the View menu and choose the Show Info option. Then you can view the graph of camera histograms as well as the other metadata, like camera maker, exposure time, focal length and more.

EXIF Information NEF

Step 3: Moreover, you can also edit and adjust camera histogram for the photos. When you view the desired photo, you can click the Edit icon at the bottom next to the Trash Bin icon. Go to the Adjust tab and you will get all camera histograms. Move the sliders to get a satisfied photo.

Tweak Parameter Histogram

Step 4: After that, you can click the Edit menu, or choose the Batch Convert option from the Batch option. Pick your favorite image format from the Format drop-down option and adjust the Quality. Once you have clicked on the Convert button, the process will start.

When you want to share the desired photos to your social media sites, click the Share icon at the bottom, choose the proper channel and enter the account information to share the photos with ease.

Download for Mac Version


Based on the sharing above, you should understand what camera histogram is, how it works and how to read it on your computer. Though you can view camera histogram on digital camera, it is not easy to read it on desktop. WidsMob Viewer Pro, on the other hand, is not only a camera histogram viewer, but also an excellent RAW viewer for most of the photos. If you have any query about the topic, you can share more details in the comments.