If the aperture number blinks when it's set at a high number such as F22, the subject is overexposed.
Ọ bụrụ na nọmba ọnụọgụ ahụ na-amị ụra mgbe e debere ya na nọmba dị elu, dịka F22, isiokwu a na-emebigaghị ókè.