Re: confusion re: pinholga

From: paul beard <paulbeard_at_domain.name.suppressed>
Date: Tue 22 May 2007 - 21:59:49 PDT

On May 22, 2007, at 9:06 PM, Shannon Stoney wrote:

> The website says that the pinholga has an aperture of .0079" or .
> 2010mm, and that is f/215.

To find the f/stop, divide the focal length by the aperture. for
instance, I have a camera with a 118 mm focal length and a .4mm
aperture. That gives me an f/stop of 295. With a FL of 40 and an
aperture of .2, I make it about f/200.

> So I am wondering: are my images going to be sort of fuzzy because
> the pinhole is not the optimal size?

Well, they are pinhole images ;-)

--
Paul Beard
words: http://paulbeard.org/wordpress
pictures: http://www.flickr.com/photos/pdb206/
Are you trying to win an argument or solve a problem?
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Received on Tue May 22 22:00:08 2007

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