On Sun, Aug 28, 2011 at 07:54:04AM -0400, Steven Desjardins wrote: > It's a lovely hobby. > > I am equally impressed by your numeristics. I also like numbers like > 720 because I can do the math in my head more easily.
It still comes a bit of a surprise to me that this isn't "obvious" - I've been thinking that way so long that I sometimes forget that not everybody thinks that way. The ancient Babylonians (who had no everyday concept of fractions) used a base 60 representation for just that reason; you can divide 60 by all the common small numbers (2, 3, 4, 5 and 6) with no remainder. [You see remnants of the Babylonians today in measuring time and angles] Basically, any size that is a multiple of 60 would work reasonably well. That would cover most of the usual aspect ratios. The most noticeable omission would be the 16:9 aspect ration of HDTV (and many widescreen computer monitors), but even that can be achieved by a multiple of 240. That means that maximum dimensions of 720 or 960 are convenient choices. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
