A digital camera includes a CCD imager mounted at a front with a primary color filter. The securing arrangement 32 is rotatable relative to the spindle 14 to a securing position in which the respective fastening formations 30, 38 co-operate so that the securing arrangement 32 secures the actuating lever 20 to the spindle 14. These assemblies are stored in a library and are then accessed by a navigation run-time module that runs in conjunction with, or as a part of, a visual run-time application. The signal alerts an operator that elevators are positioned properly relative to a pipe body so that slips within the elevators will be properly engaged against the outer surface of the pipe and not a connection upset or large diameter external coupling. The electric motor power connection assembly is suitable for use in a hybrid electro-mechanical transmission. Recombinant virus may encode a heterologous polypeptide such as chemokines, cytokines or co-immunostimulatory molecules or an homologous polypeptide, which is immunologically cross reactive with the immunogenic polypeptide or peptide.