Provided are a terminal having a photographing function and a displaying method for the terminal. The displaying method includes generating a plurality of process images by processing an original image, which is an image shown through a lens of the terminal, several times using different setup information each time, and displaying the generated plurality of process images on a plurality of buttons. Accordingly, even when a user is not proficient with how to obtain a high quality photograph by setting setup information, such as a focus, exposure, etc. and with operating the buttons, the user can select a process image, which seems to be the most preferable to the user, from among the process images, and thus the user can easily find the optimum setup information with a simple button operation.