Choosing File Numbering

The  Rebel T3i/600D automatically numbers your images for you, but can change the sequence to suit your work.

At the default settings, the Rebel numbers images and assigns prefixes and file extensions. Both JPEG and RAW files begin with the prefix IMG. Movie files begin with MVI_and hav a .mov file extension. The flexibility comes in because you can choose the type of file-numbering method that the camera uses, and your choice can help you manage images on your computer. The file-numbering options are Continuous, Auto reset, and Manual reset

(Show in Figure 1.11).

Working With Folders

With the T3i/600D, the camera automatically creates a folder in which to store images. However, you can set up additional folders and that's helpful if you want to keep images for different scenes and subjects in separate folders. Plus using folders can help you organize images as you download them to the computer. On the T3i/600D, each folder can contain up to 9,999 images, and when that number is reached, the camera automatically creates a new folder.

Resizing JPEG Images In The Camera

If you want to have images read to use off the memory card in a digital photo frame, on a web or social medial site, or to send in e-mail, you can resize most JPEG images directly in the camera. Whne you resize an image, the T3i/600D creates a copy of the original file, resizes it to the size you choose, and then saves  it as a new file on the memory card. The original image is left intact on the memory card so that you have a full-size image for editing and printing. You can only resize JPEG images captured as Large, Medium, S1, or S2. RAW and S3 JPEG images can't be resized.