Originally posted by Vmax911 I'm going to give this method a try. Thanks for posting it!
this seems far to complicated.
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I invented my own FAST method to do Fine AF tuning.
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First - yes - smaller apperture is better.
*Note - that many lenses have start to lose sharpnes when thy're at lowest apperture values- like 2.0 or similar.
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Second - Find a object with small details, in your room. 1,5-3 m is ideal distance, but that depends on the lens, you can pick whatever you want.
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Third - FIRSTLY - Use Live View to focus on the object. Take a pic.
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Fourth - Swiitch to OVF - without moving camera ( preferable tripod, but I alys do that handheld )
and if focus doesn't move - and beeps with red dot immediatelly - you're done, or your AF Fine Tune is already in the best position.
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DONT MOVE CAMERA DISTANCE FROM OBJECT - WHEN SWITCH FROM - OVF TO Live View. ! If you're handheld, sit on the chair and try to not move camera distance
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IF your OVF, do a single "bzz" and do refocusing the picture - after you already take Pic with Live View - That means - they have different measures, and that meausres - must be the same !
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Important
LiveView have Contrast AF focusing method, and that measure is always correct one. !
PDAF is do - through the mirror - with PDAF AF Safox module.
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So,
Just do the couple of Live View shoots, from same position in your room, and retest same focusing with PDAF through OVF - changing Fine Tune values.
When Focus will be the same in both, the Red Square Confirmation focus - will be present - after Live View Focusing, in OVF mode, and camera would not hunt a new focus point!
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SIMPLE , BUT EFECTIVE. Dont bother yourself with complicated methods, and charts