See the difference after MA at f1.2

Started May 19, 2012 | Discussions thread
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TomFL
TomFL Regular Member • Posts: 123
See the difference after MA at f1.2

Just got the 5D3 and Canon 85mm f1.2L yesterday. First shots with 85mm were a bit soft I thought, looked like it was front focusing.

Used the instructions here to dial it in visually using the EOS Utility. Tripod mount, 9 feet away, single point focus.

http://www.birdphotographers.net/forums/showthread.php/58042-AF-microadjustment-tricks

Makes a big difference at f1.2 with such a narrow DOF. Click on image to see 100% crops below (from RAW, unsharpened)

Before MA:

After MA of +7:

It now nails AF as good as LiveView 90% of the time. There is an occasional outlier that is 2 to 3 clicks off, especially if AF was previously at MFD or Infinity.

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