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Message: <blockquote data-quote="J-see" data-source="post: 428470" data-attributes="member: 31330">First: this is how I do it which doesn't imply it's the only or even best manner. It works for me. I encountered the method somewhere but I can't recall where exactly.I put my cam on a tripod and level it out so it is perfectly horizontal. I don't want any angle while focusing. Then I set up a focus target at a distance, something which has plenty of contrast and makes focus as easy as possible for the cam. It requires enough light too.Then I go to live-view and manually focus the lens (fully zoomed in) until it is as sharp as possible. Then I switch the lens to manual, same with the cam and make sure the focus method is AF-S, single shot. I also close live-view since I'll be using the viewfinder now.I press my back-button to activate focus and since the lens is on manual, all the cam does is show one of those: <O> or some of them in the viewfinder.All I need to do now is go to the AF-fine tune and find both ends of my range. I do not touch the focus ring on my lens else I have to redo everything. I start somewhere and check if it gives the in focus dot. If it doesn't, or the dot is blinking combined or not with a front or back arrow, I adjust the value until I directly have a dot each time I press the focus button. I work my way through the range until the dot starts blinking again. Once I know that range between a solid dot at the one end and a solid at the other, I just need to set the middle.While tuning my Tam, I got the first solid dot at +5 and the last at +12. +4 and +13 did blink and occasionally show an arrow so they were no good.From +5 to +12 = 7 divided by two is 3.5. So I can set it on either +8 or +9 and that's it.After that I shoot subjects at different ranges to check if they're always in focus and also check the minimal and infinity to see if that still works.</blockquote>

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