Canon EOS Rebel XTI - Manual (Page 172)

172
Image Conversion Factor
Since the image area is smaller
than the 35mm film format, the
equivalent lens focal length (crop
factor) will increase by 1.6x.
Image size
22.2 x 14.8mm (0.87 x 0.58 in.)
35mm image size
36 x 24mm (1.42 x 0.94 in.)
U.S.A. and Canada only:
The Lithium ion/polymer battery that powers the product is
recyclable. Please call 1-800-8-BATTERY for information on
how to recycle this battery.