The Canon EOS Digital Rebel XSi/450D Companion

CHAPTER 2

BODY PARTS

30

TIP: Know Your Speed Class

SDHC is a newer derivative of SD cards. Offering higher capacities and speedi-

er transfer than regular SD, SDHC cards will work fine in your Rebel XSi. How-

ever, while SD cards use a multiplier rating – 133x, for example – SDHC uses a

speed class rating. e multiplier used on regular SD cards indicates how much

faster the card is when compared to a standard speed CD-ROM drive. SDHC

cards come in three classes, Class 2, 4, or 6. Class 2 cards can transfer 2 MB per

second, while Class 4 or 6 can transfer 4 or 6 MB per second, respectively.

Body Parts

As you work through the rest of this book, you will become well-versed in all of

the XSi’s controls. Let’s take a quick look at the different interface elements on the

XSi so that you understand what controls I’m referring to as you work through

the rest of the book.

Camera Top

You should already be familiar with the power switch and Mode dial on the top

of the camera. We’ll be exploring all of the mode options throughout the rest of

the book.

Mode DialFlash hot shoe

Power Switch

ISO Control

Main Dial

Shutter button

Strap mount

Pop-up Flash

On the top of the camera you’ll find several essential shooting controls.

If you’ve been shooting, then you also already know where the shutter button •

is and understand that it has two positions, a half-press position for focusing

and a full press for taking a shot. ...