nope. there's only one major variable: the amount of light that reaches the film. picking aperture opening and shutter speed as two single variables to control it is very arbitrary. in fact, you can get by with just one (e.g. shutter), easily (and this is what happens with mirror lenses)
and it is also very limiting, to think just in terms of these two "knobs". there're tons of other variables in play: the duration of exposure, the depth of field, and so on, and on, and on. that's why there're all those nd filters, multiple exposures, and so on. i don't think thinking in terms of "f/stop - shutter speed" is any better than in terms of "landscape-portrait-whatever" :) <rant off> mishka > From: Pieter Nagel > Subject: Pentax and the joyful absence of exposure modes > Date: Mon, 19 Aug 2002 15:44:33 -0700 ... > As I took up photography, I quickly learnt it was all about 2 major > variables: aperture and shutter speed[2]. Every shot calls for a > trade-off, one at the expense of the other. Carefully choice was > neccesary. HotJobs - Search Thousands of New Jobs http://www.hotjobs.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
