A noise reduction apparatus for digital cameras is presented that includes groups of one or more connected non-linear filter units. Patterns can be received with respect to one or more keys. The connector can be configured as an adapter unit distinct from the case, suitable to transform a traditional electro-thermal actuator device into a device according to the invention. State information is associated with the at least one service invoked. The strap is adaptable to accept a user’s hand disposed between the strap and the outer surface of the sidewall.