Description : What are the disadvantages to buying a flash unit without an LCD screen on the back?
Last Answer : Information might include power level, zoom, Exposer Compesation, Guide number, Autofocus Assist Illuminator On/ Off. Auxiliary light on/off. The info displayed isn't really what you should care about. Only the ... you $300+. The other flashes need to be able to work on a stand wirelessly as slaves.