Above you can see how all of the focal lengths perform at various T stops. All of the tests were shot using the ARRI Alexa 35 in its 4.6K sensor mode shooting 4K DCI.

Now, the reason I always use this robot is that it has very fine details on it and it is very easy to see if something is sharp or not. While there is nothing wrong with shooting charts, we don't shoot charts for a living so I prefer to use this method. Charts are arguably more useful for lens technicians. I always use this same robot, so you can go and check other lens tests I have previously done to see any type of comparison.

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