Hluav taws xob shutter phau ntawv ua haujlwm tseem ceeb, rau qee qhov, qhov nce thiab poob ntawm qhov hluav taws kub kaw yog tswj tau los ntawm lub hwj chim, thiab thaum muaj hluav taws kub, lub hwj chim txiav tawm thiab lub zog standby kuj tsis tuaj yeem siv sijhawm, tus maub los tuaj yeem paub txog, thiab tuaj yeem ua manually ntog nrawm los ua lub luag haujlwm ntawm hluav taws hauv lub sijhawm.