Nearly all digital cameras these days come with an LCD screen allowing users to instantly review photos as they are taken. This one feature has drastically changed and improved how we take photos. However, an equally useful feature on digital cameras is what is called Live View technology, a feature that allows you to not only view the subject of your shots, but to also get a simulated preview of the exposure before you click the shutter button. The following tips for taking digital photography cover this new feature.
This feature has been a part of most point-and-shoot cameras for quite some time, but many camera users don’t use the feature to its fullest extent. Also, in the last few years, Live View has been built into 35mm DSLR cameras. Latest models of both the Canon and Nikon 35mm cameras feature Live View.
How it Works
With traditional digital cameras, you look through the optical viewfinder at the top of the camera, and compose and take your shot. Then you look on the back of the LCD screen to see how the photo came out. But with Live View, you don’t use the small optical viewfinder. You use the actual LCD screen to frame your photo while at the same time getting a simulated preview of your exposure settings before you take the shot. Many users, however, basically use Live View as the viewfinder and but not for previewing exposure settings. That’s because many users don’t shoot beyond the automatic mode of their camera. The following tips for taking digital photography will guide you through the process of using Live View to it’s fullest capacity.
Live View on Non-35mm Cameras
Live View works best on point-and-shoot and compact cameras because there’s no mirror inside that needs to pop-up to reveal the sensor. So in Live View, if you change any of the exposure settings, including ISO, aperture, shutter speed, exposure compensation or White Balance settings, you get a simulation of your settings on the LCD screen when you press the shutter halfway down. It works similar to automatic focus when you press the shutter halfway, you see the subject of your camera come into focus.
With larger monitors on the back of digital cameras, you can actually compose shots better using the screen as the viewfinder. The Canon Powershot series, especially the last three models (G9, G10, and G11) each sport a 3-inch screen that makes the traditional tiny viewfinder nearly useless. You can simply see more and compose better with the larger size screen.
The G9, for example, comes with the option to use Grid Guidelines that appears when you’re in live shooting mode. The grid is divided into 9 parts so you can use the traditional Rules of Thirds in photography to compose shots or just line up a subject.
Here are a few illustrations of Live View in action. In the first example, Live View mode is engaged and the shutter priority speed is 1/60 of a second, at f/2.8, which means there’s less light coming into the camera. In the second example, I changed the shutter priority to â…™ of a second, and as you can see more light is allowed into the camera. Before the advent of Live View technology there as no way you could preview exposure in this way.
In another example, I’ve changed the White Balance settings to demonstrate another exposure simulation in Live View. With feature, you now can see if your White Balance is correct or what type of color cast you will have on the lighting before you take the photo. This takes a lot guessing on out the process, and makes for more accurate settings.
Live View on 35mm SLRs
Live View technology works best on point-and-shoot and compact cameras, but not as well on 35mm cameras. Why is this? Well, Ben Long explains it best in his book, The Canon EOS Digital Rebel XS/1000D Companion Book: “To create an image on LCD screen, the image sensor needs to be able to see out the lens. But in an SLR [35mm single reflection camera], there’s a shutter and mirror between the sensor and lens, so the sensor is effectively, blind. This means there’s no way for it”¦to show you an image on the LCD screen. The XS, though, provides a special feature called Live View that does let you use the LCD screen as the viewfinder.”
With Live View on 35mm cameras, the auto focus is slower and there’s a slight lag in the capture of the photo. Even Canon points out the disadvantages with Live View: “The disadvantage of the Quick Mode AF is that to perform it, the camera has to momentarily lower the mirror and Live Viewing will “black-out” for a moment, as you press the button to activate the AF. Once you remove your thumb from the button, when focusing is completed, Live Viewing instantly returns.”
I use Live View on my Canon 50D for difficult-to-reach shots such as at a dance recital, concert, or even sometimes for group photography photos using a tripod. On the Canon cameras, Live View also features silent mode shooting, which comes in handy in places like churches or wildlife photography.
Also, many Live View features include facial detection which helps improve image focus faces. Of course, this feature is best used for group portraits instead of candid shots where subjects are moving around or are not directly facing the camera.
Though Live View is being added to both consumer and top of the line professional 35mm cameras, I would strongly suggest not purchasing such a camera for that feature. If you want the full of advantage of Live View, you’re better off purchasing a compact camera with that feature.
Finally, I recommend Live View as an effective teaching tool for digital photography. I use the feature on my Canon Powershot G9 in workshops to show how exposure settings work in the camera. And because of the live simulation, students are able to grasp the concepts a little faster. The ability to view, compose, and evaluate exposure settings in the LCD monitor is another breakthrough piece technology that makes taking digital photos easier and better.
So is Live View a feature on your camera? Which camera do you use and how well does the feature work?