Re: hello.....

If you look on page 120 in Eric Renner's first edition or 128 in the second
edition you will see an array of progressively more blurred images of the
same object along with the f stop of the pinhole. The pinhole in the lower
right corner seems optimal. The pinhole directly above it is more than four
times wider, and the blurriest one is nearly ten times wider. To get the
precise size relationships among the several pinholes used, pick an
arbitrary focal length and divide each f stop into it. I just spent a week
at Eric Renner's place, where he referred to people like me who try to solve
problems like this as "techno-twits". He would just try something and see
what it looks like. Maybe he's right.
----- Original Message -----
From: "Mark Interrante" <mark@interwalk.com>
To: <pinhole-discussion@pinhole.com>
Sent: Monday, August 05, 2002 7:21 PM
Subject: Re: [pinhole-discussion] hello.....

> Ok, I've a question. I recently saw Martha Casanave's Lenin photos
(http://marthacasanave.com/lenin.html)
> and I think they are beautiful. She uses a non-optimial pinhole, and I'd
> like to know if people have any idea how much larger I would need to make
> a pinhole to achieve this effect?
>
> Mark
>
>
> >-- Original Message --
> >Subject: Re: [pinhole-discussion] hello.....
> >From: glehany@mac.com
> >To: pinhole-discussion@pinhole.com
> >Reply-To: pinhole-discussion@pinhole.com
> >Date: Mon, 5 Aug 2002 22:52:58 +0100
> >
> >
> >hello................
> >............anyone there
> >
> >
> >I guess everyone's too busy pinholing to post.......
> >
> >I have to say this is the friendliest and least antagonistic mailing
> >list I've been on.......
> >
> >Cheers.
> >
> >Gordon Lehany
> >
> >
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>
>
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Received on Sat Aug 10 07:27:42 2002