Today, the quest for the perfect digital image generally requires cramming a huge number of very small pixels onto a camera sensor. By and large, the older the image, the larger the pixels and the more crude the image. Well, now I’ve seen what must be the absolute ultimate in religious digital imagery, and it leaves me gobsmacked – the mosaics at Ravenna. Pixels don’t come larger than this! No digital photograph can start to do justice to the overwhelming aesthetic (Did I mean religious?) experience of encountering the wealth of digital images that cover the walls of the basilica here. Pixels individually placed to form the most exquisite, colourful and uplifting visual symbolism.