Features:

• 8.0-megapixel CCD captures enough detail for photo-quality 16x 22-inch prints
• 4x optical image-stabilized zoom
• 2.5-inch LCD screen; Face Detection
• New Easy Mode simplifies operation
• Captures images to SD memory cards (not included); powered by AA batteries

Editor Reviews:

Product Description:
The PowerShot A590 IS will astound you with its power-packed performance and impressive value. It's got 8.0-megapixels, a 4x optical zoom, an Optical Image Stabilizer and a large 2.5-inch LCD. A range of shooting modes - from manual to automatic including Canon's new Easy Mode - make picture taking carefree. A DIGIC III Image Processor with Enhanced Canon Face Detection assures natural-looking results, while Motion Detection Technology reduces blur. For added creativity, attach wide or telephoto converter lenses. ISO Sensitivity - Auto, High ISO Auto, ISO 80/100/200/400/800/1600 equivalent Built-in ElectronicFlash - Auto, Red-eye Reduction, Auto Red-eye Correction, Flash On, Flash Off; FE lock, Slow Synchro Flash Range - 12 in.-11 ft./30cm-3.5m (W), 12 in.-7.2 ft./30cm-2.2m (T) (when sensitivity is set to ISO Auto) Shooting Modes - Auto, Easy, Camera M, Portrait, Landscape, Special Scene (Foliage, Snow, Beach, Sunset, Fireworks, Night Scene, Aquarium), Indoor, Kids & Pets, Night Snapshot, Movie Storage Media - SD/SDHC Memory Card, MultiMediaCard, MMC Plus Card, HC MMC Plus Card - Suggest optional 1GB or higher for practical use File Format Design rule for camera file system, DPOF Version 1.1; JPEG Compression Mode - Still Image - Exif 2.2 (JPEG); Movie - AVI (Image - Motion JPEG; Audio - WAVE (Monaural)) Number of Recording Pixels - Still Image - 3,264 x 2,448 (Large), 2,592 x 1,944 (Medium 1), 2,048 x 1,536 (Medium 2), 1,600 x 1,200 (Medium 3/Date Stamp), 640 x 480 (Small), 3,264 x 1,832 (Widescreen); Movie - 640 x 480 (20 fps/20 fps LP), 320 x 240 (30 fps) available up to 4GB or 60 minutes, 160 x 120 (up to 3 minutes at 15 fps) Uses 2 AA Batteries - Shooting Capacity for Still Image - approx. 220 shots (AA-size Alkaline Battery), approx. 500 shots (AA-size Ni-MH Battery); Playback Time - Approx. 540 min. (AA-size Alkaline Battery), approx. 660 min. (AA-size Ni-MH Battery) - Sugg

Rating : - Avoid Powershot cameras
I bought the Powershot S2 IS on amazon just over a year ago.. worked fine till just out of warranty, then all the pictures began to come our overexposed. I sent it into Canon and they want 157 dollars to repair it or replace with a refurbished model. It cost 259 new! I wrote them and told them that I expected a lightly used expensive digital camera to work more than one year, but no dice. I'll never buy another Canon. Beware!