Originally Posted by
Drew Wiley
That feature is for sake of easier focusing on the scene itself. But the metering function is not dependent upon that. As long as you can aim the central spot to where you want in to be in the scene, good enough for a correct reading. All of the focus rings on my own set of Pentax meters still work correctly, and none have been overtightened. But still, I rarely bother to adjust the focus at all when using these meters, because I'm usually in a bit of a hurry before the lighting shifts. No difference in actual readings.
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