AF Micro Adjustments

Untitled1

Time to match the new lens to the camera bodies, so fire up the FoCal. It is once you are used to the software quite simple to use, even easier if you have a camera that supports fully automatic AF micro Adjustment. Set up your target, hook up the camera to the computer and away you go.

Untitled

After you have done a series of photographs at different levels of adjustment the software calculates what the final adjustment should be (on Canon if you are adjusting zoom you repeat the process for the Wide & Telephoto end).

The software is capable of a number of tests, including calculating what is the best performing aperture.

Untitled6

 

 

Upgrade Time

_CPB6717

Whilst I enjoy the 11-24mm F4 immensely, at nearly 2 kilos it is a bit of a lump to lug around all day when you don’t need to shoot so wide. So it was time to upgrade a 17-40mm F4 L that I had knocking about to the latest 16-35mm F2.8L mkIII. And what an upgrade it is, just need to dial in all the AF Micro Adjustments and we are good to go. I use Reikan FoCal to calibrate, it is disappointing that Canon do not support the full automatic calibration process which would substantially reduce the amount of faffing about, but hey-ho.