Using Metrics to Evaluate Failure Propagation and Failure Impacts in Application Landscapes

A card holder comprising a single-piece transparent material having a rear face and folded therefrom and in close proximity thereto a front face; and projecting from the end of one of said faces a section of said transparent material adapted to engage with the body of camera. The projecting section typically may have a hole into which a tripod or camera case screw can be placed or may slide into an accessory shoe or flash attachment shoe.