Re: EV, f/stop, As Marked (was this stupid title: pentax-discuss-d Digest V03 #71)

2003-03-05 Thread Bob Blakely
Notice how I easily changed the title to something meaningful so that folks can tell what they're about to open from among a great onslaught of posts. You digest people could be courteous if you wanted to be so. Just cut & past the title of the post you're responding to into the "Subject" line of y

Re: pentax-discuss-d Digest V03 #71

2003-03-05 Thread Chris Brogden
> Paul Franklin Stregevsky said: > > f/1.2 is 0.45 stop faster than f/1.4 > > > Gregory L. Hansen wrote: > > Going up by halves, > > f/1.0 > f/1.2 > f/1.4 So... is 1.2 half a stop faster than 1.4, or slightly less than half a stop? I realize that this make no practical difference, but I'm

Re: pentax-discuss-d Digest V03 #71

2003-03-05 Thread Gregory L. Hansen
Paul Franklin Stregevsky said: > Chris Brogden <[EMAIL PROTECTED]> wrote: > > "I believe it's only a half-stop from 1.2 to 1.4." > > Here's how f/stops compare. I don't remember where I got these numbers. I > may have derived them, so feel free to question them. > > f/1.2 is 0.45 stop faster than