According to some aspects, a method for assisting the adjusting of a focus of an image includes providing a graphical representation of a detected image. The method can also include receiving an indication of a user selection of a region of the image and providing a magnified graphical representation of the selected image region. The method may further include providing a graphical indication of a degree of focus for at least a portion of the selected image region. The graphical indication in some instances is visually correlated with the magnified graphical representation of the selected image region. The size, shape, and/or color of the graphical indication in some instances can be correlated with the degree of focus for at least a portion of the selected image region.