Pentax's entry CMOS DSLR — the K-x, APS-C, K mount, in-body SR, AA power, HD video, 2009.
The Pentax K-x was released in 2009 as an entry-level K-series digital SLR, positioned above the K-m and offered in a range of body colours. It was aimed at beginners and enthusiasts on a budget, kept AA-battery power for convenience, and used the Pentax K bayonet for compatibility with existing lenses.
This is an APS-C digital SLR on the Pentax K mount. It uses a CMOS sensor and an optical pentamirror viewfinder, and it includes sensor-shift in-body Shake Reduction that works with any mounted lens. It runs on AA-type batteries and can record HD video, a step forward for the entry Pentax bodies of its era. Composition is through the optical finder.
The move to a CMOS sensor gave it stronger high-ISO performance than the earlier CCD entry bodies, making it a capable low-light and street camera at its price. AA power and in-body stabilisation add practicality for travel and for older manual lenses, and the video capability broadened its appeal as an affordable all-rounder.
On the used market, check the shutter operation and any actuation count against its rated life, listen for normal versus faulty Shake Reduction rattle, and inspect the sensor for dust and marks. Test the rear LCD for dead or stuck pixels, check the card and battery door latches, and confirm the AA compartment contacts are clean. Check the grip rubber and note the K mount's broad compatibility with older Pentax lenses.