You did in 3 sentences what took me 1/2 a page! Concise people irritate me! ;-)
Don > -----Original Message----- > From: Peter Loveday [mailto:[EMAIL PROTECTED] > Sent: Sunday, September 26, 2004 6:23 AM > To: [EMAIL PROTECTED] > Subject: Re: The meaning of f > > > > There have been a discussion on another list about what the "f" in the > > aperture value means, like when one say "f2.8" or such. > > > > Different theories have been put forward. Anyone here who has an > > authoritive answer? > > Correctly written, its F/2.8 or F:2.8. where F = focal length. > > At F/2.8, the lens has an aperture that is 1/2.8th of the focal > length. So > a 28mm at F/2.8 lens would have a 10mm aperture (28/2.8) > > Love, Light and Peace, > - Peter Loveday > Director of Development, eyeon Software >
