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). Camera settings as per previous pages.
Canon EOS 50D (RAW) vs. Pentax K20D (RAW)
Canon EOS 50D (RAW)
Pentax K20D (RAW)
4.4 MB JPEG (4752 x 3168)
4.0 MB JPEG (4672 x 3104)
The EOS 50D and Pentax K20D offer nearly identical nominal resolution and after taking the in-camera processing out of the equation by shooting RAW there is not an awful lot between them. Having said that the Pentax image shows just a tad more detail, especially in crops close to the edge of the frame (coins on label, batteries). It becomes obvious that at 15.1 megapixels nominal resolution the 50D is limited by the performance of the lens while the Pentax prime lens is still capable of resolving the K20D's 14.6 megapixels.