Flir lens 1030mm with case for e series thermal imagers flir 1196961 this 30mm lens with case from flir is for e series thermal imagers and is a popular accessory providing 17x magnification compared to the standard lens other features include field of view fov 15deg x 1125deg minimum focus distance 12m 393ft focal length 3038mm 12in spatial resolution ifov 131 mrad082 mrad f number 13 weight 0092kg 0203lb incl two lens caps size 24 x 58mm l x d fli