pinhole coverage issue

Hello all,
I am working with 4X5 film format (at 145mm length) with 0.44mm pinhole
(~f/300). How do I find out what is the coverage of the 'lens' (is it
equivalent to 50mm, 100mm 35mm camera lens?). How to make pinholes which
will give wider angle coverage? I have seen shots taken with extreme wide
angle pinholes. How does one do that?
Does formula "Pinhole diameter = 0.0073 * SQR(focal length)" give some known
coverage?
thanks,

Achal

----- Original Message -----
From: "Ray Esposito" <brassring@brassring.org>
To: <pinhole-discussion@pinhole.com>
Sent: Monday, April 15, 2002 7:58 AM
Subject: Re: [pinhole-discussion] developing tanks/pinhole cam [was paper
negative tricks]

> Jim - there is no pricing on the XD. Ray
>
> ----- Original Message -----
> From: "Jim Kosinski" <merlin@paintcancamera.com>
> To: <pinhole-discussion@pinhole.com>
> Sent: Monday, April 15, 2002 8:12 AM
> Subject: Re: [pinhole-discussion] developing tanks/pinhole cam [was
> paper negative tricks]
>
>
> > The Merlin-XD pinhole camera is made from a film developing
> > tank. Check the website for details,
> > www.paintcancamera.com
> >
> > Jim K
> >
>
>
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Received on Mon Apr 15 19:29:07 2002