Its not glamorous or interesting but you need to know what you are doing. Had to break out the flash heads and the 5D to do some product shots for a website. White on white can be a little difficult but with a little gradation on the background light it can work. I tend to under expose the shot and increase the exposure on the raw file in post. How do you show prints? Straight copy job, even lighting is the trick. I did notice that my sensor needs a good clean- thank you Lightroom for your spotting. These should look nice online. If you want to find out more or purchase some of these amazing cards and prints go to-  www.littlecity.net.au