A photo is the cutting of reality and it is the result of selection of a photographer. The selection that determines which parts of reality set in front of photographer should be seen by observer. As a result of this selection other probable choices will be omitted.In confrontation with the photos, always possibility of existence another choice, except photographer choice that engaged me,the choice that with the least change can represent realities and meanings which are different from what they are,these realities can change the perception of one photo or even can influence the content of it.Gradually, this fact became obvious to me that one photo can be a Signifier to a signified` existence in a distinct time and place, in front of camera, It cannot dictate anything about other signified in the same time and place.For illustrating this uncertainty, I took these photos.The common element of all these photos is a white screen with people standing in front of it. The white screen and the subject in front of it,represent the photographic choice and the area around it shows the reality that observer is deprived from seeing it, in facing the photos.Isfahan.Iran