In Japan, since 2009 many camera manufactures, have focused a tiny but important device: a new generation viewfinder in all digital camera, not only in consumer oriented compact DSC, but highly advanced DSLR. Upon many new system of camera, only one may dwindle the size and weight, cut the budget dramatically (energy saving) successfully, even create a specific market (MILC/EVIL). In fact, the president of Nikon, Makoto Kimura, declared that the EVIL system may “Redefinition of photography” in July. 2010, and will announce its first “counter-back weapon” before the end of 2010 or early in 2011. In our research, we collect more than 300 cases from the telephone survey during Sept,, 2010 and Feb., 2011. Total of 210 cases comply with the conditions. To probe mainly into the relationship between new generation DSC Confidence level and 3 potential customers: Amateur Photographer (AP), Senior Photographer (SP), and college student (CS). The profiles of contingency table were used to explore the potential preference for the camera with EVIL device. That is the reason what we are probe into this highly competitively market with brilliant creative design, and hope to offer an objective suggestion for both industry and education administers.