As has become typical of DSLRs, the Rebel XSi provides a smorgasbord of in-camera image tweaks. A menu of Picture Styles lets you apply various profiles of sharpness, contrast, saturation, and what Canon calls color tone (i.e., skin tone). Individual settings within each profile can be adjusted, and you can create up to three custom profiles to be retained in the memory. But the XSi cannot process edited RAW files into JPEGs in-camera, a capability a number of competing cameras have. Highlight Tone Priority, an image control first seen in the latest EOS-1D cameras, can be set to expand the tonal range between a scene highlight and midtone. In practice we found the effect fairly mild, and, unlike Nikon's D-Lighting or Sony's Dynamic Range Optimizer, it offers no levels of adjustment. Another on-the-fly adjustment, Auto Lighting Optimizer, will boost brightness and contrast levels as needed. Again, we found the effect very subtle. Auto Lighting Optimizer cannot be applied in RAW or RAW + JPEG capture. Once you upload your images to a computer, more extensive adjustments can be applied with Digital Photo Professional, including processing and conversion of RAW files, tone curve adjustment, correction of lens aberrations, and software dust-erasure using dust-mapping recorded by the camera. Picture Style Editor lets you apply any preset or customized profile to a RAW file with a click. Canon is notably generous with in-the-box software. Besides the applications already mentioned, the XSi comes with the well-regarded ImageBrowser for sorting, viewing, and editing pictures, and PhotoStitch for making multi-frame panoramics.