Nevertheless, with an EVF, the lens must be switched on (because the camera's sensor must be gathering light data and then showing it on the small screen). With cameras switched off, you may glance via optical viewfinders. This depends on the eyecup around the EVF just on cameras not whether you use eyeglasses. When photographing in glorious sunlight, the EVF may well not be strong enough to see the image. In sunlight, an EVF might not be bright enough Buying more batteries is a simple solution. 3 downfalls of an electronic viewfinderīecause you're powering a display, even if it's a small one, the power tends to drain faster. It's useful to have when determining the right aperture for a scene, but it's not necessary. It's impossible to overestimate how valuable this is.Ī live brightness preview can assist you in dialing in the precise exposure you desire without any need for continuous chimping. Exposure previewĪn electronic viewfinder gives users a real-time preview of the exposures, so the intensity of the photo will match what you see through the EVF. Many optical viewfinders have the lens apertures completely open, which doesn't give a good picture of what the depth of focus would be in the picture when you hit your camera release.ĭSLRs have a "depth of field" zoom function that closes down the aperture to whatever you set it to – the problem is that if you're trying to shoot at smaller apertures, the intensity of field ensures its validity will make the whole thing look impractically dark through the viewfinder. The sensor captures the view via the lens, processes it, and then projects it onto a small display that can be viewed through the eyepiece.Īn EVF can show you what your depth of focus will be, as it can show you what your brightness will be. It is shorter and hidden from artificial light than a live preview screen, and it may also consume less electricity. This screen's image is used to help focus the camera on the subject to be captured. If you're interested in learning more, keep reading!Īnd if you want to get the hang of photography equipment basics, consult this explanatory guide on must-have gear! What is an electronic viewfinder?Īn electronic viewfinder (EVF) is a camera viewfinder that projects the image taken by the lenses onto a tiny display using electronics. In this article, we go over the advantages and disadvantages of optical and electronic viewfinders, as well as whether or not you need one at all. Digital cameras provide a variety of options for previewing images and capturing the perfect photo.