III. FEATURE DISCUSSION 15New info display itemsThe large LCD screen has enabled 8 new items to beadded to the info display compared with the Digital RebelXT: ISO speed, Dimmer offset, AF frame display, Whitebalance adjustment, White balance bracketing, Beep,Red-eye reduction mode, and Shooting display mode.The least obvious of these, and perhaps the most clever, is Dimmer offset. One linedown from the top on the far right hand side of the display, either of two icons mayappear. The first is a standard lightning bolt with +/- after it. When this symbol, and anumber such as –2/3 appears, the display indicates that the built-in flash is set for anexposure reduction of 2/3 stop. The other icon is a picture of a Speedlite, followed bythe same +/-. If that symbol is displayed, followed by, say, + 1 1/3, the display is indi-cating that the external flash attached to the Digital Rebel XTi is set for an increase inexposure of 1 1/3 stops.When exposure correction is applied, the exposure correction display inthe center of the second row on the LCD screen changes color for easyreference. The screen also displays error and warning messages andtheir solutions.A change to the info display is that the battery power remaining indicatornow has 4 levels, rather than 3. The EOS 30D also offers this useful feature.ViewfinderThe viewfinder has two additions, both brought from theEOS 30D: an FE lock indicator on the left side, and whitebalance adjustment, +/-, on the right. The red-eye reduc-tion mark is displayed on the LCD screen, so it is notincluded in the viewfinder. Viewfinder blackout time isapproximately 170 ms at 1/60 second or faster shutterspeeds. A dioptric adjustment range from -3.0 to +1.0dpt. is possible and an excellent Precision Matte focusingscreen is standard.The Digital Rebel XTi has a depth-of-field preview feature, a welcome surprise at the newcamera’s price point. The button is located near the lens mount, under the left thumbwhen the XTi is held horizontally. The feature is enabled in the Creative Zone modes.SET button, cross keys, DISP.The SET button is for selecting Picture Style directly. This is its default function. It pro-motes the use of Picture Styles, clearly differentiating the XTi from its rivals. Also, thePicture Style logo is imprinted below the SET buttonas a reminder of this capability. TheFull powerLow powerBattery almost deadViewfinderCamera side in effect External flash side in effect