This is an excellent question and there are several very simple answers. First, we have three different stages, or light boxes, that we use to photograph our items: small, medium, and large. Our original thought was to buy three different sizes from the same company so that they would be built the same and would have comparable lighting. This did not turn out to be the case, and we eventually purchased three different sizes/models from three different sources. So the construction of the light boxes varies, and so does the lighting. Also in terms of lighting, we use the same camera for all of our shots. However, time-of-day and the amount of natural light in the room tends to vary and therefore so does the lighting and hue of our photos. Therefore, some of our photos may appear more yellow, or more white, or have more shadows than others. We do not have a professional photographer on staff, and don't have time to manually adjust each photo prior to uploading. Plus, we would want to avoid any impression that our photos were manipulated in any way. Obviously our preference would be to have super-professional and super-consistent photography throughout our site. And maybe one day we will. For now, we are forced to settle with what-you-see-is-what-you-get.