The command procedure can change the form of the lens to allow zoom in/zoom out features. 3-D imaging can be accomplished making use of both equally scanning and non-scanning units. McDonagh LK, Saunders JM, Cassell J, Bastaki H, Hartney T, Rait G. Facilitators and barriers to chlamydia screening in normal apply for younger people utilizing a theoretical model (COM-B): a systematic assessment protocol.