Archived posting to the Leica Users Group, 2000/07/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The A0 size (which is double the A1 size, which in turn is double the A2 size etc etc) covers exactly the area of one square meter and the side relationship is 1 to the square root of 2 (which is 1.414 or something). I think the 1 to 1.414 or someting relationship was used so that one would _always_ get _exactly_ the same aspect ratio if one doubled, quadrupled, halved, quartered etc etc the size. BTW, in Europe at least Ilford sells paper in the A4 size, and I often print as close as I can get to A4 size but I do it on 10 x 12 Kodak paper which is much much cheaper.. When cut, the paper then fits nicely into the C4 envelopes. Good, eh? (At least Kodak Xtol is sold in metric measurements ,-) >> What i wanna know is why is not the A4 paper 200x300 metric? >> Nice round numbers, same ratio as our film! >> Is it like a 2x4 pine stud? (had to clarify that) >> >> Mark :-) Rabiner >> >It's a rationalized golden rectangle. Double it (A3), or halve it (A5), >and you've got very nearly the the same aspect ratio. Looks better >with full-frame 35mm than Letter size does as well. > >-- >Tim Spragens >http://www.borderless-photos.com - -- Christer Almqvist D-20255 Hamburg, Germany and/or F-50590 Regnéville-sur-Mer, France