AF fine tuning - is it going to affect my hyperfocal point?

Why are you using AF in landscapes?  At least as a routine workflow, most people use manual focus or Live View - neither of which have anything to do with the AF fine tune parameters.

But yes, you could back or front focus a bit and 'compensate' for the AF fine tune.  Probably won't make much difference.  You can easily test this - go outside, pick a scene that approximates what you want to shoot.  Take pictures while stepping through the AF fine tune values. See if it makes any difference.

Like I said, I don't think it will.  But thinking often gets me into trouble.  Best to test.

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RG www.lostrange.com