What can a digital camera do?
What can digital cameras do?
What's coming up
Digital cameras are a great way of taking and keeping photos. In this activity, you will find out about what digital cameras can do and the benefits of digital cameras.Start activity
Get it right first time, second time...or third time
Unlike older film cameras, digital cameras save images electronically to a memory card, instead of using physical film.
This means you can store and edit photos on your camera or computer, rather than sending them to be developed in a darkroom in the traditional way. You can still get photos developed if you want, using sites like Photobox or Snapfish.
One benefit of digital cameras is that you can see what you're photographing on the display screen.
You can use this to frame your images, choose settings and see your photos seconds after you've taken them. If they don't come out as you had hoped, you can simply delete them and try again.
Take your pick
Digital cameras come in all shapes and sizes, from simple camera phones to top-of-the-range cameras with lots of features and zoom lenses. Most cameras can take great snaps and even short films.
The more expensive the camera, the more features it will have. A larger zoom lens means you can get close to the action, and manual controls will let you be really creative.
These cameras can be complicated to use, so think about what sort of camera you want before you buy one.
Saving, editing, printing
The great thing about digital cameras is how easy it is to transfer pictures from your camera to look at them on your computer.
Digital cameras store pictures on a memory card. This means they can be easily transferred to your computer.
You can then edit your photos before sending them to friends or posting them on a website, or you can just browse through them whenever you want.
There are lots of online services that will develop your photos and deliver them to your door – or you could take your memory card to your local photo shop and get photos printed there.
Choosing your camera
If you're going to buy a digital camera, there are a number of things you should bear in mind, such as the size, the picture quality and the number of images it will store. Here are some points to remember.
Type of use
If you only take the occasional photo, a cheaper, standard camera will be your best option. Most modern cameras have plenty of features that will help you take good photos.
If you're a keen photographer, you may want to invest in something with more advanced features or accessories. These cameras are usually more expensive and can be challenging to use, so a simpler camera is probably best if you're a beginner.
One of the main ways to tell the picture quality of a camera is to check what size of image it takes. In digital cameras, this is measured in megapixels. The larger the number of megapixels, the larger the image a camera will take. This is important if you want to get large versions of your photos printed.
For most people, 7 megapixels is more than enough, and the majority of cameras will offer much more than this.
Digital cameras store their images on memory cards. In many cases, you will need to buy the memory card separately.
The amount of memory on a card is measured in gigabytes (GB). The higher the number of GB on your memory card, the more photos it will store. Most cards can hold hundreds of photos at any one time. Make sure you shop around – and check that you get the right card for your camera!
Digital cameras allow you to zoom in on the object you are taking a photo of before you take it. There are two types:
- optical zoom
- digital zoom.
Optical zoom is much more effective and produces higher quality images. All cameras have a certain amount of optical zoom, but when the camera can't zoom in any closer to an object, the digital zoom takes over.
Photos taken using digital zoom are lower quality and may appear blurry, so the more optical zoom your camera has the better.
What are the benefits
What are the main benefits of using a digital camera?
Select two of the options below.
You need to buy an expensive camera if you want good quality photos
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Cameras have come a long way and most of the cameras on the market produce good quality photos, regardless of cost.
You can see your photos seconds after you take them
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You don't need any film
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Well done, you've come to the end of the What can digital cameras do? activity.
You've learnt how digital cameras take and save pictures, that there are different types of camera and some important things to remember when buying a camera.
In the next activity, How do digital cameras work?, you'll find out how to use some of the features of a digital camera.