Batteries are abundantly available but most of it's shutter speeds are still available even when battery is drained. It's metering range is unparalleled even by today's latest and greatest. Unlike most all others - except for the Oympus OM2 and OM4, it will continue to monitor the scene and change the exposure time accordingly. OTF metering and flash are as good as it gets in TTL mode. Build quality is second to none. Smallest interchangeable VF camera and the only one Pentax ever made.