The Pentax Optio E10 was announced at CES in January 2006 as an entry-level model in the Optio compact range, positioned below the slimmer M- and S-series bodies. Its E-series role was simple family snapshot duty at a low price, and it sold under the same name in all markets.
A 6-megapixel 1/2.5-inch CCD with a primary-colour filter and 12-bit A/D conversion sits behind a 3x optical zoom equivalent to 34-102mm, with digital zoom extending reach to roughly 12x combined. Framing is on a 2.4-inch LCD, macro focusing reaches 5cm, and a movie mode plus six scene modes cover the basics. Storage is SD card alongside about 10MB of internal memory, connectivity includes PictBridge-compatible USB and NTSC/PAL video out, and power comes from two AA batteries.
The AA power supply is the E10's practical advantage: unlike proprietary-battery Optios it runs on cells available in any shop, which suits students, children and occasional shooters. Controls are minimal and fully automatic, and like all small-sensor CCD compacts it favours good light.
Used prices are minimal, so simply confirm everything works: fit fresh AAs and check power-up, zoom, flash and image review. Inspect the battery compartment for alkaline leakage corrosion — the most common fault on AA compacts — plus LCD condition and lens dust visible in sky shots. SD storage and AA power mean there are no obsolete accessories to hunt down.