Android Camera Hacking Academy

maybe i don't need to make a special video and you can already see the general sketches. first we need a front lens piece with a low focal length (30-80mm) the lower the lens fl the closer the shooting distance and the narrower the fov. to get a shallow dog, we need a wide lens diameter. because this is obtained by moving the lens away from the cellphone camera. the further the distance between the cellphone camera and this additional lens the dof will be shallower. a lens with a small diameter will become high vignetting if it is too far from the cellphone camera eye