“The K-5’s image quality is excellent, producing noise-free images all the way from from ISO 80-800.”
PhotographyBLOG has published their review of the Pentax K-5 DSLR, with 16.3MP resolution (on a 23.7 x 15.7 mm CMOS image sensor), Sensor-shift Shake Reduction Image Stabilization, 3.0-in. LCD (921k-dot), PASM, 30-1/8000 sec. plus Bulb, 11 point SAFOX IX+ autofocus system, Dust Removal, In-camera HDR, Built-in electronic level, RAW, weather-proof stainless steel alloy body, optical viewfinder with 100% frame coverage, Live View with Face Detection AF (Contrast-Detect), Continuous Shooting 7fps, and Full HD 1080p Movie at 25fps.
You can read the Pentax K-5 Review at: PhotographyBLOG.