Canon EOS Rebel T1i Instruction Manual page 179

Options other than [All images] are explained below. To start the image
transfer, press the <l> button.
New images
Images which have not yet been transferred to the computer will be
selected by the camera automatically and transferred.
Transfer order images
You select the images and they are transferred to the computer in a
batch. To select the images, see page 180.
Select & transfer
Wallpaper
The image you select and transfer will appear as the computer's
wallpaper. To exit, press the <M> button.
If you press <
will appear. Select [OK], then press <
RAW images and movies cannot be transferred as wallpaper.
You select the images to be transferred
individually. To exit, press the <M>
button.
0 > instead of the <l> button, a confirmation dialog
d Transferring Images to a Computer
0 > to start the transfer.
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