What is an EVF?

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ULTIMICRON Set your Imagination Free


What is the difference between "watching" and "gazing"?
The existence of the viewfinder can lead us to the answer.

As an example, let's compare a security camera to a consumer digital camera.
A security camera is suited to recording a fixed area broadly, accurately and reliably. It just needs to automatically collect data. In this case, we are "watching" the subject through the eyes of a machine.
On the other hand, when we "take" a picture with a digital camera, we need to "narrow down" the object of attention.
For example, when taking a picture, we would "gaze" at a particular area of a larger scene, "narrow down" our view to a specific subject, focus our awareness, steady our breathing, and solemnly press the shutter button.

The act of taking a picture begins with someone "gazing" at the subject.


We believe that this is the best word to represent the essence of the viewfinder. Regardless of whether the viewfinder is optical or electronic, its essence does not change.

We want to enable an EVF that helps people "gaze" and makes taking pictures a joy. Our "ULTIMICRON" displays encompass this desire.

What is an EVF?

EVF(Electronic View Finder)
EVF is a view finder where the image captured by the lens is projected electronically onto a miniature display, used in Digital Still Camera and Camcorder

Digital Still CameraCamcorder


Why is an EVF necessary?

Immerse yourself in the world through the viewfinder.
Hold your breath and don't let the moment slip away.
An EVF helps photographers capture the best moment in a single shot by showing exactly what is seen by the sensor.

Why is EVF necessary?_1Why is EVF necessary?_2

What are the benefits of EVF?

  1. What you see is what you get
  2. Smaller and lighter
  3. Improved usability

What are the advantages of an EVF?

A digital camera captures pictures with an image sensor.
Gazing through an optical viewfinder (OVF) is similar to the naked eye, but the picture you see is different from what the image sensor sees. Therefore, you cannot see the results of exposure compensation or other adjustments until you actually take the picture.
An EVF, on the other hand, shows you the exact picture that the image sensor sees. This lets you check your adjustments in real time when taking a picture.
EVFs continues to display the image as the photo is taken, enabling users to be confident about the final image.

*When taking pictures...

With EVF Image through the view finder = Image which is really taken, With OVF Image through the view finder ≠ Image which is really taken
EVF, Prism, Finder, Mirror, Image Sensor, Mirror box

*When taking motion pictures...

With EVF, It is possible to view the image being taken throngh the viewfinder. With OVF The image cannot be seen through the OVF, rendering the viewfinder function unusable.
EVF, x

Reduction in size and weight

The EVF removes the need for the conventional mirror box and prism used in SLR cameras, allowing cameras to be made smaller and lighter.

With OVF, With EVF

Improved usability

  • No mirror action related time lag
  • No mirror shock related jiggle
  • Image stabilization effects can be verified *
  • Subjects can be observed even under low light conditions

*This can also be done through OVF with Lens-based Optical Stabilization.