This is our standard studio scene comparison shot taken from exactly the same tripod position. Lighting: daylight simulation, >98% CRI. Crops are 100%. Ambient temperature was approximately 22°C (~72°F).
Canon EOS 50D: Canon EF 50 mm F1.4 lens, Aperture Priority, ISO 100
JPEG Large/Fine, Manual WB, Default Parameters (Standard), Self-Timer (with MLU), ALO disabled
Canon EOS 50D
9.4MB JPEG (4672 x 3104)
4.4 MB JPEG (4752 x 3168)
With nominal resolutions of 14.6 and 15.1 megapixels respectively the Pentax K-7 and Canon EOS 50D are both located towards the top end of the pixel-count scale in the APS-C world. The Pentax produces a touch better pixel-level sharpness which results in a small amount of extra detail. Having said that the differences would only be visible at very large output sizes. Tone curves are again not too dissimilar but at default settings the Canon produces more muted colors.