All great answers. As a side note, I use Irfanview (free download, just Google it) for my down and dirty show -my -friends processing. Raw is my library.

I did say most. I probably learned that a long time ago when most monitors were a standard size. Again, my point was nomenclature.

I don't disagree with your math. My only point was nomenclature. Do not electronic devices display in pixels and not dots?

DPI is dots per inch used in offset printing and was adopted with the Advent of non-darkroom photo printing. PPI is the measure of pixels per inch in an electronic image. Enlarge both and you will see the difference. The 72 measure comes into play because most computer monitors display at 72 pixels per inch.

I'm doing something similar Eric. Im going to try to find something iconic in my area and shoot THAT during the eclipse to see what things look like.