I. Introduction

Electronic viewfinders (EVF) have been around for over a decade, but in recent years they have become an essential tool in photography, especially in mirrorless cameras. An EVF is a miniature display screen that shows you an electronic preview of the image you’re about to capture, displayed inside the viewfinder of your camera. It’s essentially a mini-TV screen attached to the top of your camera, and it replaces the traditional optical viewfinder (OVF) found on DSLR cameras. In this article, we’ll explore what EVF is, how it works, what its benefits are, and how you can use it to improve your photography.

II. Exploring the Features of EVF: Everything You Need to Know

Definition and Working Principle of Electronic Viewfinders

An electronic viewfinder is essentially a small computer display that sits inside the camera’s eyepiece and shows you what the camera’s sensor is seeing, in real-time. Unlike OVF, which uses mirrors and prisms to reflect the light coming through the lens, EVF is a purely electronic device that directly captures the signal from the camera’s sensor and displays it on a high-resolution screen. This allows the photographer to see a more accurate representation of the final image, with the ability to preview the exposure, focus, white balance, color saturation, and other settings before taking the shot.

Comparison with Optical Viewfinders (OVF)

One of the main advantages of EVF over OVF is that it provides a more accurate and versatile preview of the scene. With OVF, the photographer sees the scene through a prism and a mirror, which can distort the image, especially in low light or with fast-moving objects. Also, OVF only shows a view of the scene that falls within the limitations of the lens, and doesn’t provide any information about the exposure, focus or other settings. On the other hand, EVF can be programmed to show the scene in different viewing modes, from high-contrast black-and-white to vivid colors, and can display overlays with information about the focus, depth of field, histogram, and more.

Main Features of EVF

Some of the key features of EVF that enhance the shooting experience and the final results are:

  • Resolution: The higher the resolution of the EVF, the more detail you can see in the preview. Most modern EVF have at least 2.4 million dots, which is sufficient for most situations, but some top-of-the-line models can have up to 5 million dots or more.
  • Refresh rate: The refresh rate is the speed at which the EVF displays the preview. A high refresh rate (60fps or more) ensures a smooth and fluid preview, which is especially important for fast-moving subjects or when panning the camera.
  • Brightness: EVF is a backlit display, which means it can adjust its brightness according to the ambient light, and can display the preview even in low-light conditions. Some models also offer a built-in eye sensor that switches automatically between the EVF and the LCD screen when you move your eye towards or away from the eyepiece.
  • Color accuracy: One of the advantages of EVF over OVF is that it can show a more accurate representation of the final image, by adjusting the color temperature and saturation of the preview. This helps you achieve a more consistent color grading across different lighting conditions and shooting scenarios.
  • Focus peaking: EVF can show a preview of the focus points in the scene, by adding a colored outline around the areas of the image that are in focus. This helps you achieve a more accurate focus, especially in low light or with manual focusing.
  • Real-time previews of filters and effects: EVF can show you in real-time how the image would look like with a particular creative filter or effect applied, such as Black-and-White, Sepia, or HDR. This enables you to experiment with different styles and techniques before taking the shot.

Examples of How These Features Enhance the Shooting Experience and Final Results

The main advantage of EVF is that it allows you to preview the final image before taking the shot, which can save you time and effort in post-processing, and reduce the number of missed shots. For example, by using focus peaking, you can ensure that your subject is in focus, even in low light or with a shallow depth of field. By adjusting the brightness and color balance of the EVF, you can see how the image would look like in different lighting conditions and environments, and make the necessary adjustments before taking the shot. By previewing the effects of different filters and styles, you can experiment with new techniques and creative ideas, and achieve a more unique and impactful visual language.

III. Why EVF is the Future of Photography?

Advantages of EVF over OVF

One of the main reasons why EVF is considered the future of photography is that it offers several significant advantages over OVF:

  • Preview of exposure, white balance, depth of field, noise, etc: EVF can show you in real-time how the image would look like with different exposure settings, white balance, and depth of field options, which can save you time and effort in post-processing. Also, it can preview the noise and grain of the image, which helps you select the right ISO and shutter speed settings for the scene.
  • Preview of creative filters and effects in real-time: As mentioned above, EVF can preview the effects of different creative filters and styles in real-time, which helps you experiment with new techniques and creative ideas, and achieve a more unique and impactful visual language.
  • Ability to shoot in challenging lighting conditions and with varied lenses: EVF can compensate for the limitations of the lens and the ambient lighting conditions, by adjusting the brightness, contrast, and color temperature of the preview. Also, it can show you a magnified view of the scene, which helps you achieve a more precise focus and framing.
  • Compatibility with mirrorless cameras and video shooting: EVF is an essential feature in mirrorless cameras, which are becoming more popular among photographers due to their compact size and versatility. Also, EVF is a more convenient option for shooting videos, as it provides a stable and accurate preview of the scene, without the need to use an external monitor.

Testimonials from Photographers Who Have Switched from OVF to EVF

Many photographers have embraced EVF as the future of photography, and have switched from OVF to EVF due to its many advantages. For example, Chris Gampat, the founder of The Phoblographer, writes: “Electronic viewfinders have been around long enough now for me to understand why some people prefer them to optical ones. Simply put, you can see a preview of what your image will look like before it’s taken.” Similarly, Eric Kim, a popular street photographer, says: “With EVF, what you see is what you get. It’s like looking at a tiny TV screen that previews what you’re about to shoot. This is a game-changer, especially for street photographers who need to react quickly to the changing conditions.”

IV. The Pros and Cons of Using an Electronic Viewfinder


Some of the main advantages of using an electronic viewfinder are:

  • Accuracy: EVF provides a more accurate preview of the final image, by compensating for the limitations of the lens and the lighting conditions.
  • Versatility: EVF allows you to customize the preview according to your preferences and the shooting scenario, by adjusting the brightness, contrast, color saturation, and other settings.
  • Convenience: EVF eliminates the need to switch between the LCD screen and the optical viewfinder, which can be cumbersome, especially in low-light or bright-light conditions.
  • Creativity: EVF enables you to experiment with different styles and techniques, by previewing the effects of different filters and effects in real-time.


Some of the main drawbacks of using an electronic viewfinder are:

  • Cost: EVF is a relatively expensive feature, especially in high-end cameras. Also, it can drain the battery life of the camera faster than using the LCD screen.
  • Battery life: EVF requires more power than OVF, which means that you might need to recharge your battery more frequently, or carry a spare one.
  • Lag: EVF can show a slight lag or delay when displaying the preview, especially when shooting in burst mode or with fast-moving subjects.
  • Eye strain: Some photographers might experience eye strain or fatigue after prolonged use of the EVF, especially if the screen is too small or the brightness is too high.
  • Electronic glitches: EVF can sometimes suffer from electronic glitches, such as freezes, image artifacts, or display errors, which can affect the accuracy and reliability of the preview.

How to Decide Whether an EVF is a Good Fit for Your Shooting Style and Needs

If you’re unsure whether EVF is suitable for your shooting style and needs, you can consider the following factors:

  • Type of photography: If you shoot fast-moving subjects, or in low-light conditions, or with varied lenses, or if you need a more accurate preview of the exposure and color balance, then EVF might be a good fit for you.
  • Budget: If you can afford a camera with EVF, and you’re willing to invest in the features and advantages it offers, then it might be a good option for you.
  • Personal preference: Ultimately, the decision to choose between EVF and OVF depends on your personal preference and taste in photography. Some photographers enjoy the traditional feel and convenience of OVF, while others embrace the versatility and accuracy of EVF.

V. How to Make the Most of Your EVF

Calibration and Customization of EVF Settings to Match Your Preferences and Scenarios

To make the most of your EVF, you can customize and calibrate its settings to match your preferences and scenarios. Some of the settings you can adjust are:

  • Brightness and contrast: You can adjust the brightness and contrast of the EVF to match the ambient lighting conditions and your personal taste.
  • Color temperature: You can adjust the color temperature of the EVF to match the color balance of the scene, and achieve a more accurate representation of the final image.
  • Focus peaking: You can customize the color and intensity of the focus peaking overlay to match your preference and shooting scenario.

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By Happy Sharer

Hi, I'm Happy Sharer and I love sharing interesting and useful knowledge with others. I have a passion for learning and enjoy explaining complex concepts in a simple way.

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