FWIW, I tend to agree with Class A on the matter.

I often feel the Rule of Third is too extrem to be applicable and I intuitively approch a more centered composition. Which makes the 3x3 grid pretty useless for me in many cases. Of course, that's just my intuition. But ancient Greeks already must have felt the same

BTW, this is why I prefer the term Golden ratio (Phidias) over Fibonacci ratio.

What I found useful though is a composition by the 4x4 grid where I use the

*centers* of the inner four rectangles. And if you do the math, the corresponding ratio is closer to the Golden ratio than 3/2 indeed.

So, I think it is a shame that Pentax called the overlay grid options in the K-5 LV as follows:

4x4 grid, Golden ratio, Scale.

Because their Golden ratio grid is a plain 3x3 grid.

That's a level of ignorance a photography corporation should avoid. IMHO...

And the Golden ratio grid is a missed opportunity.