Olympus EVOLT E-500 - Manual (Page 97)

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One of the big advantages of a digital camera is that as soon
as you take a picture, you can see how it looks right away.
That means that if the picture is out of focus or just hasn’t
turned out the way you want, you can erase it and try again.
With a film camera, on the other hand, you won’t know if there
is a problem with the picture until you get the film developed.
Because a digital camera lets you erase those unwanted
images, you can keep more memory free to store images and
take more shots. You can also protect images that you do not
want to erase.
Another benefit is that you can edit recorded images: change
colors to black and white or sepia, change the resolution,
attach to e-mail, etc. So take advantage of your digital
camera’s benefits and have fun taking great pictures.