Re: f stops

Each succeeding fstop is simply the diameter of the aperture divided into
the distance from pinhole to film. The specific numbers are traditional and
represent a set of diameters that yield aperture areas that are double or
half the adjacent one.
----- Original Message -----
From: "ragowaring" <ragowaring@btinternet.com>
To: <Pinhole-Discussion@pinhole.com>
Sent: Monday, October 29, 2001 3:57 PM
Subject: [pinhole-discussion] f stops

> Hello Everyone
>
> I have been following your conversations and have found them very
> interesting. I am relatively new to pinhole, about two years now since I
> first saw what was going on the web. I am a painter and find that
> photography makes an interesting a refreshing adjunct to my work. Pinhole
> photography is a wonderful way to make images and use your imagination.
>
> Anyway, enough of an introduction; could anyone please tell me how to
> calculate the natural progression of f stops doubling exposure from one
> number to the next, or post a list of these. I once saw a list on the web
> and have never been able to find it again. I think you will all know what
I
> mean 5.6, 8, 11, 16, 22, 32 etc up to 1000 or whatever.
>
> I would find this immensely helpful when calculating exposures and
designing
> cameras.
>
> Alexis
>
>
>
>
>
> _______________________________________________
> Pinhole-Discussion mailing list
> Pinhole-Discussion@pinhole.com
> unsubscribe or change your account at
> http://www.pinholevisions.org/discussion/
>
Received on Tue Oct 30 07:50:18 2001