Will I really need to recalibrate anything at all just after I replace my authentic bulb? Requested by Dave P. On Aug 15, 2019 You do not need to recalibrate your machine after you replace the bulb. With Native WXGA resolution, the projection image is acceptable and distinct ample for https://epson-projector-bulb-prob33211.pointblog.net/the-epson-projector-bulb-diaries-83138510