On Sharpness, ISO and Shutter Speed

Started Nov 29, 2013 | Discussions thread
OP Jack Hogan Veteran Member • Posts: 6,154
Re: On Sharpness, ISO and Shutter Speed

rubank wrote:

Jack Hogan wrote:

If in the A7 and D610 there is really such a large difference in horizontal vs vertical captured resolution, is that an issue in practice? Or should we be preferring capturing in landscape vs portrait orientation to maximize, say, vertical detail in the center of an image? Many of us spend thousands of dollars on better lenses to typically gain less than the 20% difference shown.

It´s interesting (and surprising) to see that the vertical and horisontal readings has swapped places between the two cameras. I wonder what´s with this?

Perhaps in Sony cameras the AAs are laid down in one orientation, and in Nikon cameras in another 90 degrees off Sony's.

And then a question: does MTFmapper take readings from the "raw" RAW files or from processed files. If the latter, how are they processed?

I believe these are the least processed files used for this type of analysis on the net: the raw data is just clipped to black and white balanced.  That's it.

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