Reikan Focal has just released this interesting article with some graphs showing the percentage of units of each Canon lens that will benefit from calibration:
http://www.reikan.co.uk/focalweb/index.php/2017/07/calibrate-canon-ef-with-reikan-focal/
Honestly, I am not surprised by the high percentages. I do use Reikan Focal and all my fast primes need more or less calibration, but none of them is spot-on without MFA.
http://www.reikan.co.uk/focalweb/index.php/2017/07/calibrate-canon-ef-with-reikan-focal/
Honestly, I am not surprised by the high percentages. I do use Reikan Focal and all my fast primes need more or less calibration, but none of them is spot-on without MFA.