Swervy Curvy : September 24, 2008
Image Data
File Name: 20D_59730
Model: Canon EOS 20D
Lens: Canon EF 100mm F/2.8 USM Macro
Date: 09.24.08 12:10am
Focal Length: 100mm (160mm)
Shutter: 1/10 s
F-Stop: F2.8
ISO: 200
Ex Bias: +2
Program: Aperture priority
Metering Mode: Evaluative
Flash: Off
Focus Mode: Manual focus
File Name: 20D_59730
Model: Canon EOS 20D
Lens: Canon EF 100mm F/2.8 USM Macro
Date: 09.24.08 12:10am
Focal Length: 100mm (160mm)
Shutter: 1/10 s
F-Stop: F2.8
ISO: 200
Ex Bias: +2
Program: Aperture priority
Metering Mode: Evaluative
Flash: Off
Focus Mode: Manual focus
The 8.5" x 11" paper size stems from the original size of a vat that was used to make paper. At the time, paper was made from passing a fiber and water slurry through a screen at the bottom of a box. The box was 17" deep and 44" wide. That sheet, folded in half in the long direction, then twice in the opposite direction, made a sheet of paper that was exactly 8.5" x 11".
The sizing system in Europe is based on common width to height ratios for different paper sizes. The largest standard size paper is A0. Two sheets of A1, placed upright side by side fit exactly into one sheet of A0 laid on its side. Similarly, two sheets of A2 fit into one sheet of A1 and so forth. Common sizes used in the office and the home are A4 and A3.
The sizing system in Europe is based on common width to height ratios for different paper sizes. The largest standard size paper is A0. Two sheets of A1, placed upright side by side fit exactly into one sheet of A0 laid on its side. Similarly, two sheets of A2 fit into one sheet of A1 and so forth. Common sizes used in the office and the home are A4 and A3.
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