Your camera has an infra red filter in front of the sensor. This stops infra red. You have put an R72 in front of the lens. This stops everything other than infra red. The consequence is that virtually no light is reaching the sensor. To do infra red phoptography you need to remove the camera's filter. Recent threads cover doing this yourself or getting it done for you.

Last week's AP reviewed two Fuji cameras dedicated to infra red photography.