Samsung's 2011 slim 14MP compact — 26-130mm equiv 5x zoom, 720p video, microSD and BP-70A battery.
The ST90 was a slim style-led compact launched by Samsung in January 2011 as part of the ST series, positioned as an affordable ultra-thin camera below the touchscreen ST models. At around 17mm thick with a rounded body it competed with budget style compacts from Canon's IXUS and Sony's Cyber-shot W lines, selling in the UK for roughly £110 at launch.
It combined a 14-megapixel 1/2.3-inch CCD with a 5x zoom of 4.7-23.5mm, equivalent to about 26-130mm, starting usefully wide at 26mm. Framing was via a 2.7-inch LCD, and video recording topped out at 1280x720 at 30 frames per second. Storage was to microSD cards, and power came from the widely shared Samsung BP-70A lithium-ion battery, charged in-camera through a combined USB/charging cable. Dual image stabilisation and Smart Auto scene selection handled exposure automatically.
The ST90 suits buyers wanting a genuinely pocketable everyday compact with a wide-angle lens for casual, street and holiday use. Reviewers of the time found colour reproduction pleasing for the money, though as a fully automatic camera it offers no manual exposure modes, and the thin body gives little to grip for longer telephoto shots.
Check that a BP-70A battery is present and holds charge; replacements are cheap and plentiful because the same cell serves dozens of Samsung compacts. The camera charges in-camera over its proprietary-ended USB lead, so confirm a cable is included. It takes microSD rather than full-size SD, which catches some buyers out, and the slim lens barrel should be checked for dents that stall the zoom.