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Pop Photo gives resolution in lines like for the Canon 40D with 28mm-135mm
lens it gives 2100 lines from ISO 100 to 1600....
Is this lines per inch? ( I'm assuming it is)
2.54" = cm, .0254" = mm, !" = 39.37 mm per inch,
2100 lines per inch divided by .3937 = 53.34 lines per mm
or 2100 lines per inch times .0254 meters = 53.34 lines
per mm?
(Side not: Only the United States, Liberia, and Myanmar (Burma) still
use non metric standards though in the 1970 some road signs had mileage in
both miles and kilometer (Research Triangle , NC) but they faded from
view. Soda pop and other stuff is sold in liter bottles and metric stuff is now
list on many foods)
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