You can make a camera "BLIND BOX" housing of some sort, where you have external access to generic controls. It would allow for a very limited review, not to show camera specific features (like viewfinders, LCD's).
Most likely nothing more than AF lock and shutter release, basic mode selection and one e-dial.
Best solution most likely is reviewing equal (RAW conversion, shooting conditions) printed images.
10 reviewers, each sorts images in ascending order quality wise, producing final scores.
What would confuse me more is lens selection. Do you choose equally priced or equal quality lenses for the same shots (to compare achievable quality or system price-performance ratio). If it is a camera review, why not use EXACT same (only one) lens for all systems - special inter-exchangable design (like adapt all), with outstanding quality - out resolving ALL cameras. If you look at the image-resource samples, i've seen the same tests preformed with 100mm lens on APS-C Pentax and 200mm lens on APS-C Canon. You get different DOF, perspective, rendering and diffraction limit. This all must be precisely defined and explicitly stated why it has been chosen to reach objective results.
Last edited by ytterbium; 09-02-2009 at 11:16 AM.