All testing performed with a Canon 5D camera body and both the Canon EF24-70 F/2.8 and Canon EF24-105 F4 L lenses. Files were taken in camera raw and converted to JPEG in Adobe Camera Raw in PSCS2. All at ISO 100. The shots were taken from a tripod at a distance of about 36-40 inches using the cameras timer. Lighting was soft northern light via windows.