When learning how to do it right actually matters more than getting some ISF letters. Two ways to do this; learn at your own pace with the Video Calibration Training series. You can learn as much as you think you can handle or in smaller bite size pieces. It’s up to you … no hurry. And you always have on line support from the instructor should you need clarification on anything that is being discussed.
Or learn in a structured classroom setting over one day or two days. A full immersive hands on calibration learning experience. No hidden agendas … just the best interests of the student at heart.