Features
The HP Photosmart M23's bare-bones feature set is designed to make picture-taking simple. Exposure options are limited to automatic, a decent set of typical scene modes and exposure compensation. White-balance presets, three ISO settings (100, 200 and 400), and a choice of black-and-white or sepia tones round out the basics.

Without an optical zoom, this Photosmart restricts you to a fixed focal length of 36.7mm (35mm-camera equivalent), supplemented by a 7x digital zoom. Since digital zooms do nothing more than crop and interpolate images in-camera, we recommend making do with the fixed focal length and altering your photo later with image-editing software if necessary. The lens does provide decent low-light performance, though, with a reasonably fast f/2.8 maximum aperture, and shutter speeds range from 1/1,800 second to 15 seconds.
One of the more useful features is HP's Adaptive Lighting, which brightens dark areas and helps compensate for low light and backlighting. You can set it to high, low or off. The camera also has a red-eye correction feature that you can apply after you've taken a picture, although we found that the Photosmart M23's red-eye-reduction flash setting works fairly well in the first place. Another uncommon feature that we like is Undelete. In Playback mode, it reinstates the last image deleted in case it was accidentally discarded.
The built-in help system is one of the fullest we've seen. In addition to context-sensitive help, the Photosmart M23 offers general photo suggestions as well as an onboard mini users manual.
HP's Instant Share features, particularly when used in conjunction with the company's optional cradle, make short work of transferring and emailing photos. This Photosmart is bundled with two AA NiMH batteries that are charged in-camera. Other than HP's optional cradle for charging and image transfer, there are no other accessories for the Photosmart M23.
Although you can record movies with sound up to the capacity of your memory card, the Photosmart M23's video mode is limited to 320x240 at 24 frames per second, so you won't be holding public viewings for your video clips.