Some Day You Got to Do It: Calibrating Lenses with FocusTune & LensAlign


Today is the day it finally has to happen: I’ve got to calibrate my Canon camera and lenses. Yes, I admit it, I have been running all these tests without going through the hassle of this exercise. Luckily for me, hardly any tests were done using my Canon 5D III and I have been shooting a lot with manual focus glass anyways.

But later today the by now familiar UPS driver will bring the long-awaited Sigma 50mm f/1.4 ART lens and the Sigma USB dock and I need to be sure that all my autofocus lenses are going to behave nicely on my Canon.

Also, during a shoot a few days ago, I was diligently focusing my 135mm f/2 on the left eye of the model at aperture f/2. Lo and behold, consider the shock when I noticed on the computer screen that the right eye was in perfect focus but the left eye wasn’t.

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