Similar to Rebel X but with addition of built-in pop-up flash. Entry level EOS camera. Third generation of Rebel cameras, these cameras (Rebel X and XS) are the lightest, smallest and most quiet Rebels yet. Some of the light weight comes from the use of a hollow porroprism rather than the standard solid penta prism. This "air prism" surrounded mirrors is not as efficient at transmitting light, but it is adequately bright for viewing. FEATURES INCLUDE: Auto focus with manual override, AF lock, AF auxiliary light. New 3 point Multi-Wide Autofocus system links focus points to metering pattern. Manual metering with aperture priority AE, shutter priority AE and program AE (with functions including Intelligent Program AE, Auto Depth AE (formerly called DOF AE), Green Zone quick control dial for full auto modes and Flash AE (A-TTL program flash AE with optional 430EZ and 300EZ; and TTL program flash with built-in flash and optional 200E and ML-3). Metering patterns: 6 zone evaluative, centerweighted averaging and 9.5% partial of the central image area. LCD metering display in VF and on top panel, exp. comp., AE lock, dedicated hot shoe. Built-in pop-up flash: GN 39, 28mm lens coverage, red eye reduction. Shutter speed range 30 sec to 1/2000 plus B, flash sync at 1/90, self timer, auto DX ISO range 25-5000 with manual override (manual ISO range 6-6400), built-in motordrive provides auto film advance (prewind system) and rewind, mid-roll rewind possible, multi exp capability.